New York : Gordian Press, 1966

New Brunswick, New Jersey : Rutgers University Press, 1963

New York : Oxford University Press, 1992

New York : Methuen, 1986

Englewood Cliffs, N.J. : Prentice-Hall, 1979

Philadelphia ; Toronto : John C. Winston Company, 1948
First edition.

Englewood Cliffs, N.J. : Prentice-Hall, 1981

New York, London, Harper & Brothers, 1932

Cambridge [England] : University Press, 1972

Berkeley, Calif. : University of California Press, 1973

New York : Random House, 1966