Gaya APA

Neubauer, P, B., Neubauer, A. (1990). Nature's Thumbprint : The New Genetics of Personality . canada: DEKR Corporation.

Gaya MLA

Neubauer, Peter, B.., Neubauer, Alexander. "Nature's Thumbprint : The New Genetics of Personality". canada: DEKR Corporation, 1990. Buku PSI.