Cita APA (7th ed.)

Coulson, T., Catchpole, E., Albon, S., Morgan, B., Pemberton, J., Clutton-Brock, T., . . . Grenfell, B. (2001). Age, sex, density, winter weather, and population crashes in Soay sheep.

Cita Chicago (17th ed.)

Coulson, T., E. Catchpole, S. Albon, B. Morgan, J. Pemberton, T. Clutton-Brock, M. Crawley, i B. Grenfell. Age, Sex, Density, Winter Weather, and Population Crashes in Soay Sheep. 2001.

Cita MLA (9th ed.)

Coulson, T., et al. Age, Sex, Density, Winter Weather, and Population Crashes in Soay Sheep. 2001.