Παραπομπή APA

Wiggins, J. F., & Robinson, M. A. (1971). Vertebrates. Hutchinson Education.

Παραπομπή Chicago Style

Wiggins, Judith F., και Maureen A. Robinson. Vertebrates. London: Hutchinson Education, 1971.

Παραπομπή MLA

Wiggins, Judith F., και Maureen A. Robinson. Vertebrates. Hutchinson Education, 1971.