APA (7e ed.) Bronvermelding

Griffin, A., Sheldon, B., West, S., & Naturalists, A. S. o. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. University of Chicago Press.

Chicago (17e ed.) Bronvermelding

Griffin, A., B. Sheldon, S. West, en American Society of Naturalists. Cooperative Breeders Adjust Offspring Sex Ratios to Produce Helpful Helpers. University of Chicago Press, 2005.

MLA (9e ed.) Bronvermelding

Griffin, A., et al. Cooperative Breeders Adjust Offspring Sex Ratios to Produce Helpful Helpers. University of Chicago Press, 2005.