APA استشهاد

Barrett, N. [. (1975). Purnell's illustrated nature atlas. Purmell.

استشهاد بنمط شيكاغو

Barrett, Norman [ed.]. Purnell's Illustrated Nature Atlas. Berkshire: Purmell, 1975.

MLA استشهاد

Barrett, Norman [ed.]. Purnell's Illustrated Nature Atlas. Purmell, 1975.