APA (7th ed.) Citation

Carrington, D. K., & Stephenson, R. W. (1985). Map collections in the United States and Canada: A directory (4th ed.). Special Libraries Association.

Chicago Style (17th ed.) Citation

Carrington, David K., and Richard W. Stephenson. Map Collections in the United States and Canada: A Directory. 4th ed. New York: Special Libraries Association, 1985.

MLA (9th ed.) Citation

Carrington, David K., and Richard W. Stephenson. Map Collections in the United States and Canada: A Directory. 4th ed. Special Libraries Association, 1985.