Intended for use by the head of reference and subject-area bibliographers at Penfield Library, this document provides guidelines for the selection and evaluation of titles for the 25,000 volume reference collection at this primarily undergraduate institution. The reference collection also supports the general information needs of both the college and the community. The policy includes a definition of a reference book; it assigns responsibility for the reference collection; and it defines the purpose of the collection. More than half the document is an outline of over 20 types of reference materials: almanacs and yearbooks, annual reviews, annual reports, atlases, bibliographies, biographies, concordances, dictionaries, directories, encyclopedias, handbooks and manuals, indexes and abstracts, legal materials, library catalogs, medical materials, plot summaries, statistical sources, style manuals, telephone books, maps, travel books, and identification guides for plants and animals. For each type of reference work both selection and deselection statements are provided. An appendix lists names of over 200 historical persons who will be the subjects of bibliographies to be included in the reference collection. (Author/THC)