APA-ийн эшлэл(7 дахь хэвлэлт)

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.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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