APA

Curtis D., . (1960). Learn while you sleep: the theory and practice of sleep-learning. New York: Libra Publishers.

Chicago

Curtis David, . 1960. Learn while you sleep: the theory and practice of sleep-learning. New York: Libra Publishers.

Harvard

Curtis D., . (1960). Learn while you sleep: the theory and practice of sleep-learning. New York: Libra Publishers.

MLA

Curtis David, . Learn while you sleep: the theory and practice of sleep-learning. New York: Libra Publishers. 1960.