APA (7th ed.) Citation

Trzyna, T. C. (1976). World directory of environmental organizations (2d ed.). Published for the International Program of the Sierra Club by Sequoia Institute.

Chicago Style (17th ed.) Citation

Trzyna, Thaddeus C. World Directory of Environmental Organizations. 2d ed. San Francisco, Ca: Published for the International Program of the Sierra Club by Sequoia Institute, 1976.

MLA (9th ed.) Citation

Trzyna, Thaddeus C. World Directory of Environmental Organizations. 2d ed. Published for the International Program of the Sierra Club by Sequoia Institute, 1976.