APA (7th ed.) Citation

Sierra Club. International Earthcare Center. (1983). Directory of U.S. college and university programs in environmental studies and natural resources management. International Earthcare Center.

Chicago Style (17th ed.) Citation

Sierra Club. International Earthcare Center. Directory of U.S. College and University Programs in Environmental Studies and Natural Resources Management. New York: International Earthcare Center, 1983.

MLA (9th ed.) Citation

Sierra Club. International Earthcare Center. Directory of U.S. College and University Programs in Environmental Studies and Natural Resources Management. International Earthcare Center, 1983.