Cita APA (7th ed.)

Gray, J. A. (1987). The psychology of fear and stress (Second edition.). Cambridge University Press.

Cita Chicago (17th ed.)

Gray, Jeffrey Alan. The Psychology of Fear and Stress. Second edition. Cambridge: Cambridge University Press, 1987.

Cita MLA (9th ed.)

Gray, Jeffrey Alan. The Psychology of Fear and Stress. Second edition. Cambridge University Press, 1987.