Παραπομπή APA

Burton, M. (1971). Nature: The realm of animals and plants. Grolier Society.

Παραπομπή Chicago Style

Burton, Maurice. Nature: The Realm of Animals and Plants. London: Grolier Society, 1971.

Παραπομπή MLA

Burton, Maurice. Nature: The Realm of Animals and Plants. Grolier Society, 1971.