Port Washington, N.Y., Kennikat Press 1971

Englewood Cliffs, N.J. : Prentice-Hall, 1967

[Athens] Ohio University Press, 1972

London, New York, Routledge & K. Paul; Barnes & Noble, 1968

Englewood Cliffs, NJ : Prentice-Hall, Inc., 1966

Englewood Cliffs, N.J. : Prentice-Hall, 1964

Mamaroneck, N.Y., P.P. Appel, 1973
Rev. expanded ed.

Bloomington : Indiana University Press, 1978

Englewood Cliffs, N.J. : Prentice-Hall, Inc., 1963

Garden City, New York : Doubleday & Company, Inc., 1972
First edition.

New York : Twayne Publishers, Inc., 1962

New York : Columbia University Press, 1963

East Lansing] Michigan State University Press, 1960
[1960 edition].

Washington, DC : Smithsonian Institution Press, 1993

New York, Twayne Publishers 1962

New York : Twayne Publishers, Inc., 1961

Englewood Cliffs, N.J. : Prentice-Hall, 1962

Englewood Cliffs, N.J. : Prentice-Hall, 1962

Englewood Cliffs, N.J. : Prentice-Hall, 1965

Cambridge, Massachusetts : Harvard University Press, 1969