APA Style

Smith, Robert Leo,. (1972). The ecology of Man : ab ecosystem approach (2n ed.). New York: Harper & Row.

Chicago Style

Smith, Robert Leo,. The ecology of Man : ab ecosystem approach. 2n ed. New York: Harper & Row, 1972. Text.

MLA Style

Smith, Robert Leo,. The ecology of Man : ab ecosystem approach. 2n ed. New York: Harper & Row, 1972. Text.

Turabian Style

Smith, Robert Leo,. The ecology of Man : ab ecosystem approach. 2n ed. New York: Harper & Row, 1972. Print.