Cita APA (7a ed.)

Gruender, H. (1920). Is the ouija-board a harmless toy?: A psychological discussion. Loyola University Press.

Cita Chicago Style (17a ed.)

Gruender, Hubert. Is the Ouija-board a Harmless Toy?: A Psychological Discussion. Chicago: Loyola University Press, 1920.

Cita MLA (9a ed.)

Gruender, Hubert. Is the Ouija-board a Harmless Toy?: A Psychological Discussion. Loyola University Press, 1920.