New York : Viking Press, 1969

New York : Norton, 1990
1st ed.

Cambridge, UK ; New York : Cambridge University Press, 1999

New York, Oxford University Press, 1970

Coral Gables, Fla., University of Miami Press 1968

New York : Knopf, 1980
1st American ed.

Cambridge, Harvard University Press, 1972

New York : Dutton, 1980