Johnson, G. B. (. B. (2000). The living world. McGraw-Hill.
Trích dẫn kiểu ChicagoJohnson, George B. (George Brooks). The Living World. McGraw-Hill, 2000.
MLA引文Johnson, George B. (George Brooks). The Living World. McGraw-Hill, 2000.
警告：这些引文格式不一定是100％准确.