APA citiranje

Bergstrom, C. T., & Lachmann, M. (1998). Signaling among relatives. III. Talk is cheap. The National Academy of Sciences.

Citação norma Chicago

Bergstrom, Carl T., and Michael Lachmann. Signaling Among Relatives. III. Talk Is Cheap. The National Academy of Sciences, 1998.

MLA citiranje

Bergstrom, Carl T., and Michael Lachmann. Signaling Among Relatives. III. Talk Is Cheap. The National Academy of Sciences, 1998.