Cita APA (7th ed.)

Walker, K. M. (1961). The extra-sensory mind. Emerson Books.

Cita Chicago (17th ed.)

Walker, Kenneth Macfarlane. The Extra-sensory Mind. New York: Emerson Books, 1961.

Cita MLA (9th ed.)

Walker, Kenneth Macfarlane. The Extra-sensory Mind. Emerson Books, 1961.