Newman, H. H., & Holzinger, K. J. (1937). Twins: A study of heredity and environment. University of Chicago Press.
Cita Chicago Style (17a ed.)Newman, Horatio Hackett, y Karl J. Holzinger. Twins: A Study of Heredity and Environment. Chicago, Illinois: University of Chicago Press, 1937.
Cita MLA (9a ed.)Newman, Horatio Hackett, y Karl J. Holzinger. Twins: A Study of Heredity and Environment. University of Chicago Press, 1937.
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