Παραπομπή σε μορφή APA (7η εκδ.)

Alexander, G. (1958). Biology: A summary of general principles with examination and answers (7th edition.). Barnes & Noble.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Alexander, Gordon. Biology: A Summary of General Principles with Examination and Answers. 7th edition. New York: Barnes & Noble, 1958.

Παραπομπή σε μορφή MLA (8th εκδ.)

Alexander, Gordon. Biology: A Summary of General Principles with Examination and Answers. 7th edition. Barnes & Noble, 1958.