Johnson, G. B. (2006). The living world. New York: McGraw-Hill Higher Education.
Trích dẫn kiểu ChicagoJohnson, George B. The Living World. New York: McGraw-Hill Higher Education, 2006.
MLA引文Johnson, George B. The Living World. New York: McGraw-Hill Higher Education, 2006.
警告:這些引文格式不一定是100%准確.