Cita APA (7a ed.)

Wilbur, R. L. (1943). The human family inc. Stanford University Press.

Cita Chicago Style (17a ed.)

Wilbur, Ray Lyman. The Human Family Inc. Stanford: Stanford University Press, 1943.

Cita MLA (9a ed.)

Wilbur, Ray Lyman. The Human Family Inc. Stanford University Press, 1943.