APA (7th ed.) Citation

Newman, H. H., Freeman, F. N., & Holzinger, K. J. (1937). Twins: A study of heredity and environment. The University of Chicago Press.

Chicago Style (17th ed.) Citation

Newman, Horatio Hackett, Frank N. Freeman, and Karl J. Holzinger. Twins: A Study of Heredity and Environment. Chicago, Ill.: The University of Chicago Press, 1937.

MLA (8th ed.) Citation

Newman, Horatio Hackett, et al. Twins: A Study of Heredity and Environment. The University of Chicago Press, 1937.