APA (7th ed.) Citation

MacClearn, G. E., & De Fries, J. C. (1973). Introduction to behavioral genetics. Freeman.

Chicago Style (17th ed.) Citation

MacClearn, G. E., and John C. De Fries. Introduction to Behavioral Genetics. San Francisco: Freeman, 1973.

MLA (9th ed.) Citation

MacClearn, G. E., and John C. De Fries. Introduction to Behavioral Genetics. Freeman, 1973.

Warning: These citations may not always be 100% accurate.