APA-referens (7:e uppl.)

Stephens, P., d'Sa, C., Sillero-Zubiri, C., & Leader-Williams, N. (2001). Impact of livestock and settlement on the large mammalian wildlife of Bale Mountains National Park, southern Ethiopia.

Chicago-referens (17:e uppl.)

Stephens, P., C. d'Sa, C. Sillero-Zubiri, och N. Leader-Williams. Impact of Livestock and Settlement on the Large Mammalian Wildlife of Bale Mountains National Park, Southern Ethiopia. 2001.

MLA-referens (9:e uppl.)

Stephens, P., et al. Impact of Livestock and Settlement on the Large Mammalian Wildlife of Bale Mountains National Park, Southern Ethiopia. 2001.