Simpson, G. G. (1959). The meaning of evolutio. American: A Mentor book.
Trích dẫn kiểu ChicagoSimpson, George Gaylord. The Meaning of Evolutio. American: A Mentor book, 1959.
MLA引文Simpson, George Gaylord. The Meaning of Evolutio. American: A Mentor book, 1959.
警告：這些引文格式不一定是100％准確.