Cita APA (7a ed.)

Loptson, P. (1995). Theories of human nature. Broadview Press.

Cita Chicago Style (17a ed.)

Loptson, Peter. Theories of Human Nature. Peterborough: Broadview Press, 1995.

Cita MLA (9a ed.)

Loptson, Peter. Theories of Human Nature. Broadview Press, 1995.