APA引文

George B. Johnson. (2003). The living world. Boston, MA: McGraw-Hill.

Trích dẫn kiểu Chicago

George B. Johnson. The Living World. Boston, MA: McGraw-Hill, 2003.

MLA引文

George B. Johnson. The Living World. Boston, MA: McGraw-Hill, 2003.

警告：这些引文格式不一定是100％准确.