Παραπομπή σε μορφή APA (7η εκδ.)

Allen, N., & Key, T. (2001). Re: Plasma insulin-like growth factor-I, insulin-like growth factor-binding proteins, and prostate cancer risk: a prospective study.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Allen, N., και T. Key. Re: Plasma Insulin-like Growth Factor-I, Insulin-like Growth Factor-binding Proteins, and Prostate Cancer Risk: A Prospective Study. 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

Allen, N., και T. Key. Re: Plasma Insulin-like Growth Factor-I, Insulin-like Growth Factor-binding Proteins, and Prostate Cancer Risk: A Prospective Study. 2001.