APA引文

Morton, W. R. M. (1957). Placentation in the spotted hyena (Crocuta crocuta Erxleben).

Citação norma Chicago

Morton, W. R. M. Placentation in the Spotted Hyena (Crocuta Crocuta Erxleben). 1957.

MLA引文

Morton, W. R. M. Placentation in the Spotted Hyena (Crocuta Crocuta Erxleben). 1957.

警告：這些引文格式不一定是100％准確.