Category: General Works (A)

Collections. Series. Collected works (AC) 60
Encyclopedias (AE) 142
Dictionaries and other general reference works (other than Encyclopedias) (AG) 251
Museums (AM) 4
Periodicals (AP) 2731
Societies, Academies (AS) 5
Yearbooks, Almanacs, Directories (AY) 4
General history of scholarship and learning (AZ) 8