APA引文

Leland G Johnson. (1986). Essentials of biology. Wm.C Brown Publishers.

Chicago Edition Citation

Leland G Johnson. Essentials of Biology. Dubuque: Wm.C Brown Publishers, 1986.

MLA引文

Leland G Johnson. Essentials of Biology. Wm.C Brown Publishers, 1986.

警告：這些引文格式不一定是100％准確.