एपीए उद्धरण

Simpson, G. G. (1959). The meaning of evolutio. American: A Mentor book.

शिकागो स्टाइल उद्धरण

Simpson, George Gaylord. The Meaning of Evolutio. American: A Mentor book, 1959.

एमएलए उद्धरण

Simpson, George Gaylord. The Meaning of Evolutio. American: A Mentor book, 1959.