Classification;
a scheme for the shelf arrangement of books in the field of medicine and its related sciences.

APA Citation

National Library of Medicine (U.S.). (1956). Classification: a scheme for the shelf arrangement of books in the field of medicine and its related sciences. [2d ed.]. Washington: U.S. Govt. Print. Off..

MLA Citation

National Library of Medicine (U.S.). Classification: a Scheme for the Shelf Arrangement of Books In the Field of Medicine And Its Related Sciences. [2d ed.]. Washington: U.S. Govt. Print. Off., 1956.

Warning: These citations may not always be complete (especially for serials).