APA (7th ed.) Citation

Subramanyam, K., & O'Pecko, M. M. (1979). Directory of environment periodicals. Vance Bibliographies.

Chicago Style (17th ed.) Citation

Subramanyam, K., and Mary M. O'Pecko. Directory of Environment Periodicals. Monticello, Ill.: Vance Bibliographies, 1979.

MLA (8th ed.) Citation

Subramanyam, K., and Mary M. O'Pecko. Directory of Environment Periodicals. Vance Bibliographies, 1979.