National Geographic Society. (2000). Plants. New York: McGraw-Hill School Division.
Trích dẫn kiểu ChicagoNational Geographic Society. Plants. New York: McGraw-Hill School Division, 2000.
MLA引文National Geographic Society. Plants. New York: McGraw-Hill School Division, 2000.
警告:這些引文格式不一定是100%准確.