APA (7th ed.) Citation

Dawkins, R. (2006). The selfish gene (30th annivesary ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Dawkins, Richard. The Selfish Gene. 30th annivesary ed. Oxford; New York: Oxford University Press, 2006.

MLA (9th ed.) Citation

Dawkins, Richard. The Selfish Gene. 30th annivesary ed. Oxford University Press, 2006.

Warning: These citations may not always be 100% accurate.