Chicago & London : University of Chicago Press, 1967

New York : Viking Press, 1964

Ithaca : Cornell University Press, 1948

New York : Atheneum, 1969
First Edition.

New York : H. Holt and company, 1931

Ithaca, N.Y., Cornell University Press 1966

New York, Barnes & Noble 1969

Chapel Hill, The University of North Carolina Press, 1928

Boston : Houghton Mifflin Company, 1930

Westport, Conn., Greenwood Press 1973

Austin, Tex. : The University, 1918

Cambridge : Harvard University Press, 1959
2d ed.

New York, H. Holt and Company 1937

New York : Norton, 1976

New York : Teachers College Press, 1967

[Boston : Little, Brown, 1953

Ann Arbor, Mich. : University of Michigan Press, 1933

Boston : Little, Brown, 1963
1st ed.

New York : Greenwood Press, 1969

New York : Liveright Publishing Corporation, 1960