b'Maintaining a Catalog / Making Referencesfor the first time to a work in the collection, a reference is made at Clothing and dress See alsoGloves. If Clothing and dress has never been assigned to a work in the collection, it is entered inthe catalog for the sake of the reference, and the reference See also Gloves is made. The point isthat the user who is interested in works on clothing and dress in general may also be interested inworks limited to gloves. The book on gloves need not be entered under both Clothing and dressand Gloves, but only under the appropriately specific heading, because the See also reference willdirect the user from the broader to the narrower term. If the book on gloves were entered under bothClothing and dress and Gloves, the catalog would first list the book under the heading Clothingand dress and then direct the user to look as well under Gloves only to find the same book.Under many headings in the Sears List, following the RT [Related term] label, one or more termsare listed that represent similar or associated subjects. These related terms are neither broader nornarrower than the main term but roughly equal in specificity. The term Pardon, for example, isrelated to Amnesty. The cataloger or the user may easily look first to one term only to realize thatthe other is the more precise term for the material being cataloged or being sought in the catalog.Related terms are reciprocal. When the term Pardon is assigned for the first time to a work in thecollection, a reference is made in the catalog at Amnesty See also Pardon. The reciprocalreference at Pardon See also Amnesty is also made, but only if Amnesty has also been assignedto a work in the collection. A reference is never made to a heading until there is a work enteredunder that heading in the collection, and if the only work entered under a heading is lost ordiscarded the references to that heading must be deleted. References to headings under which thereis no material in the collection are called blind references and are to be avoided.General ReferencesUnder many headings in the Sears List, following the SA [See also] label, there is what is called ageneral reference, not to a specific heading but to a general group or category of things that may beestablished as headings as needed. In the example of Clothing and dress given above, the generalreference is to types of clothing articles and accessories, [to be added as needed]. This reference isaddressed to the cataloger as a reminder not to be limited to the types of clothing and dress itemsgiven as examples in the ListHats, Hosiery, Shoes, etc.but to create a heading for any otherclothing item, such as Gloves, when the need arises.A second function of general references is to provide instruction in the application of subdivisions.Only a few subdivisions are universally applicable. All others apply only to certain types ofheadings. For every subdivision provided in the List, except those of unique application, there is ageneral reference spelling out the use of that subdivision. If the subdivision is also a heading, thegeneral reference is given under the heading. Folklore, for example, is both a heading and asubdivision. Under the heading Folklore the general reference reads: SA [See also] topics asthemes in folklore with the subdivision Folklore, e.g. PlantsFolklore; names of ethnic oroccupational groups with the subdivision Folklore, e.g. InuitFolklore; and names of individuallegendary characters, e.g. Bunyan, Paul (Legendary character) [to be added as needed]. Whenthe subdivision is not also a heading, there is a free-standing general reference in the alphabeticalA-47'