Cita APA (7a ed.)

Nygard, J. W. (1939). Cerebral Circulation Prevailing During Sleep and Hypnosis. Lancaster Press.

Cita Chicago Style (17a ed.)

Nygard, J. Wallace. Cerebral Circulation Prevailing During Sleep and Hypnosis. Lancaster: Lancaster Press, 1939.

Cita MLA (8a ed.)

Nygard, J. Wallace. Cerebral Circulation Prevailing During Sleep and Hypnosis. Lancaster Press, 1939.