Cita APA (7a ed.)

Ashworth, P. D. (2000). Psychology and 'human nature'. Psychology Press.

Cita Chicago Style (17a ed.)

Ashworth, Peter D. Psychology and 'Human Nature'. London ; New York: Psychology Press, 2000.

Cita MLA (9a ed.)

Ashworth, Peter D. Psychology and 'Human Nature'. Psychology Press, 2000.