Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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