APA引文
Heppner, F. H. (1990). Professor Farnsworth's explanations in biology. McGraw-Hill.
Chicago Style (17th ed.) Citation
Heppner, Frank H. Professor Farnsworth's Explanations in Biology. New York: McGraw-Hill, 1990.
MLA引文
Heppner, Frank H. Professor Farnsworth's Explanations in Biology. McGraw-Hill, 1990.
警告：這些引文格式不一定是100％准確.