APA ציטוט

Leimar, O., & Hammerstein, P. (2001). Evolution of cooperation through indirect reciprocity.

Citação norma Chicago

Leimar, O., and P. Hammerstein. Evolution of Cooperation Through Indirect Reciprocity. 2001.

ציטוט MLA

Leimar, O., and P. Hammerstein. Evolution of Cooperation Through Indirect Reciprocity. 2001.