1.
|
Cleveland : World Pub. Co., 1965, c1960.
|
2.
|
New York, Holt, Rinehart and Winston, 1964]
|
3.
|
New York, Oxford University Press, 1953.
|
4.
|
London, New York, [etc.] Oxford U.P., 1968.
|
5.
|
New York : Modern Library, c1963.
|
6.
|
New York : The Modern Library, c1929.
|
7.
|
New York, Oxford University Press, 1963.
|
8.
|
Cleveland, World Pub. Co. [1962]
|
9.
|
Cleveland, World Pub. Co. [1960]
|
10.
|
Freeport, N.Y., Books for Libraries Press [1967]
|