APA (7th ed.) Citation

Pearl, L. (1963). Four philosophical problems: God, freedom, mind, and perception. Harper & Row.

Chicago Style (17th ed.) Citation

Pearl, Leon. Four Philosophical Problems: God, Freedom, Mind, and Perception. New York: Harper & Row, 1963.

MLA (9th ed.) Citation

Pearl, Leon. Four Philosophical Problems: God, Freedom, Mind, and Perception. Harper & Row, 1963.

Warning: These citations may not always be 100% accurate.