Cita APA (7a ed.)

Ruth, T. K., Hornocker, M. G., & Buotte, P. C. (2019). Yellowstone Cougars: Ecology before and during Wolf Restoration. University Press of Colorado.

Cita Chicago Style (17a ed.)

Ruth, Toni K., Maurice G. Hornocker, y Polly C. Buotte. Yellowstone Cougars: Ecology Before and During Wolf Restoration. Boulder: University Press of Colorado, 2019.

Cita MLA (8a ed.)

Ruth, Toni K., et al. Yellowstone Cougars: Ecology Before and During Wolf Restoration. University Press of Colorado, 2019.