London, Cambridge U.P., 1969

London, New York [etc.] : Oxford university press, 1939

New York : Collier Books, 1970
First Collier books edition.

New York : Harcourt Brace Jovanovich, 1982
1st ed.

[Folcroft, Pa.] Folcroft Library Editions, 1973

Oxford : Clarendon Press, 1954

Oxford Univ. Pr., 1954

Evanston, Ill., Northwestern University Press, 1966

Oxford : Clarendon Press, 1954

Freeport, N.Y., Books for Libraries Press 1972

Evanston, Ill. : Northwestern University Press, 1966

Oxford [England] : New York : Oxford University Press, Clarendon Press ; 1990

London : Edward Arnold, 1966

Oxford [England] : New York : Clarendon Press ; Oxford University Press, 1990

New York : Collier Books, 1970
First Collier books edition.

[Folcroft, Pa.] : Folcroft Press, 1970

New York : Harcourt Brace Jovanovich, 1975
1st Harvest ed.

Oxford : Clarendon Press, 1965

[Norwood, Pa.] : Norwood Editions, 1976