APA استشهاد

Lankester, R. (1990). Treatise on zoology: : Echinoderma, v 1. Unwin hyman.

استشهاد بنمط شيكاغو

Lankester, Ray. Treatise on Zoology: : Echinoderma, V 1. London: Unwin hyman, 1990.

MLA استشهاد

Lankester, Ray. Treatise on Zoology: : Echinoderma, V 1. Unwin hyman, 1990.