APA引文

Lamb, B. M. (1991). Letts guide to cacti of the world: Cacti of the world. London: Charles Lett.

Trích dẫn kiểu Chicago

Lamb, Brian M. Letts Guide to Cacti of the World: Cacti of the World. London: Charles Lett, 1991.

MLA引文

Lamb, Brian M. Letts Guide to Cacti of the World: Cacti of the World. London: Charles Lett, 1991.

警告：這些引文格式不一定是100％准確.