MLA

Tuttle, Russell H, et al. Conservation In the 21st Century: Gorillas As a Case Study. Springer US, 2008.

APA

Tuttle, R. H, Mehlman, P. T, Mehlman, P. T, & Steklis, H. D, Stoinski, T. S, Stoinski, T. Suzanne, & Steklis, H. D. (2008). Conservation in the 21st Century: Gorillas as a Case Study. Springer US.

Chicago

Tuttle, Russell H., P. T Mehlman, Patrick T Mehlman, Horst D Steklis, T. S Stoinski, Tara Suzanne Stoinski, and H. D Steklis. Conservation In the 21st Century: Gorillas As a Case Study. : Springer US, 2008.