APA (7th ed.) Citation

Burkhardt, D., Schleidt, W., & Altner, H. (1968). Signals in the animal world. McGraw-Hill.

Chicago Style (17th ed.) Citation

Burkhardt, Dietrich, Wolfgang Schleidt, and Helmut Altner. Signals in the Animal World. New York: McGraw-Hill, 1968.

MLA (9th ed.) Citation

Burkhardt, Dietrich, et al. Signals in the Animal World. McGraw-Hill, 1968.