APA (7th ed.) Citation

Baker, C. E. (1977). Physicians` Desk Reference (31 ed.). Litton Industries.

Chicago Style (17th ed.) Citation

Baker, Charles E. Physicians` Desk Reference. 31 ed. Rockville: Litton Industries, 1977.

MLA (9th ed.) Citation

Baker, Charles E. Physicians` Desk Reference. 31 ed. Litton Industries, 1977.