1.
|
New York, Harper & Row [1969]
|
2.
|
New York, Harper & Row [1969, c1966]
|
3.
|
Oxford, B. Blackwell, [1964, c1943]
|
4.
|
|
5.
|
New York, W. W. Norton & company [1967]
|
6.
|
New York, Oxford University Press, 1952.
|
7.
|
London : English Universities Press, 1965.
|
8.
|
New York, H. Fertig, 1968.
|