Παραπομπή APA

Stone, I. (1980). The origin: : a biographical novel of Charles Darwin. Corgi Book.

Παραπομπή Chicago Style

Stone, Irving. The Origin: : A Biographical Novel of Charles Darwin. Great Britain: Corgi Book, 1980.

Παραπομπή MLA

Stone, Irving. The Origin: : A Biographical Novel of Charles Darwin. Corgi Book, 1980.