Lewis, H. B., Snyder, F., & Witkin, H. A. (1967). Experimental studies of dreaming. Random House.
Cita Chicago (17th ed.)Lewis, Helen Block, Frederick Snyder, i Herman A. Witkin. Experimental Studies of Dreaming. New York: Random House, 1967.
Cita MLA (9th ed.)Lewis, Helen Block, et al. Experimental Studies of Dreaming. Random House, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.