Dordrecht, Holland, D. Reidel Pub. Co. 1962

New York, Harper 1959

Englewood Cliffs, N.J. : Prentice-Hall, Inc., 1970

London, Oxford U.P., 1967

Dordrecht ; Boston : D. Reidel Pub. Co., 1976

New York : H. Holt and company, 1938

Oxford [England] Clarendon Press, 1962

Reading, Mass., Addison-Wesley Pub. Co. 1970

Berkeley : University of California Press, 1988

Urbana : University of Illinois Press, 1976

London, Routledge & K. Paul, 1969

New York, Cincinnati American Book Company 1936

Ithaca, NY : Cornell University Press, 1957

The Hague ; Boston ; London : Martinus Nijhoff Publishers, 1981

Oxford, UK ; New York, NY, USA : Blackwell, 1989

Chicago : Open Court Pub. Co., 1940

Cambridge : Harvard University Press, 1961
2d ed. rev.

Cambridge ; New York : Cambridge University Press, 1990

London : Routledge and K. Paul, 1957

Berkeley : University of California Press, 1982