1.
|
Harmondsworth : Penguin, 1970, c1955 (1983 [printing])
|
2.
|
New York, Harper & Row [1969, c1960]
|
3.
|
Cambridge, Harvard University Press, 1953.
|
4.
|
New York, Harper & Row [c1967]
|
5.
|
Stockholm, Almqvist & Wiksell [1965, c1960]
|
6.
|
New York : Harper & Row, 1971.
|
7.
|
[New York] New York University Press [1969]
|
8.
|
Princeton, N.J., Princeton University Press, 1955.
|
9.
|
Garden City, N.Y., Doubleday, 1955.
|
10.
|
New York, Meridian Books, 1957.
|