APA

Zahavi A., Zahavi A., . (1997). The handicap principle. New York: Oxford University.

Chicago

Zahavi Amotz, Zahavi Avishag, . 1997. The handicap principle. New York: Oxford University.

Harvard

Zahavi A., Zahavi A., . (1997). The handicap principle. New York: Oxford University.

MLA

Zahavi Amotz, Zahavi Avishag, . The handicap principle. New York: Oxford University. 1997.