Cita APA (7th ed.)

Gray, J. A. (1971). The psychology of fear and stress. McGraw-Hill.

Cita Chicago (17th ed.)

Gray, Jeffrey Alan. The Psychology of Fear and Stress. New York: McGraw-Hill, 1971.

Cita MLA (9th ed.)

Gray, Jeffrey Alan. The Psychology of Fear and Stress. McGraw-Hill, 1971.