APA (7th ed.) Citation

Special Libraries Association. Geography and Map Division. Directory Revision Committee, Special Libraries Association. Geography and Map Division. Map Resources Committee, & Carrington, D. K. (1970). Map collections in the United States and Canada: A directory (2d ed.). Special Libraries Association.

Chicago Style (17th ed.) Citation

Special Libraries Association. Geography and Map Division. Directory Revision Committee, Special Libraries Association. Geography and Map Division. Map Resources Committee, and David K. Carrington. Map Collections in the United States and Canada: A Directory. 2d ed. New York: Special Libraries Association, 1970.

MLA (9th ed.) Citation

Special Libraries Association. Geography and Map Division. Directory Revision Committee, et al. Map Collections in the United States and Canada: A Directory. 2d ed. Special Libraries Association, 1970.