Παραπομπή APA

Macfadyen, A. (1963). Animal ecology: Aims and methods (2nd ed.). Sri Isaac Pitman.

Παραπομπή Chicago Style

Macfadyen, A. Animal Ecology: Aims and Methods. 2nd ed. London: Sri Isaac Pitman, 1963.

Παραπομπή MLA

Macfadyen, A. Animal Ecology: Aims and Methods. 2nd ed. Sri Isaac Pitman, 1963.