APA-referens (7:e uppl.)

(2008). ECOLOGY OF SOCIAL EVOLUTION: EDITED BY JUDITH KORB AND JURGEN HEINZE. Springer.

Chicago-referens (17:e uppl.)

ECOLOGY OF SOCIAL EVOLUTION: EDITED BY JUDITH KORB AND JURGEN HEINZE. Germany: Springer, 2008.

MLA-referens (9:e uppl.)

ECOLOGY OF SOCIAL EVOLUTION: EDITED BY JUDITH KORB AND JURGEN HEINZE. Springer, 2008.