1.
|
New Haven, Yale Univ. Press, 1949.
|
2.
|
New Haven : Yale University Press, c1953.
|
3.
|
New York, Harcourt, Brace & World [1964]
|
4.
|
New Haven : Yale University Press, 1976.
|
5.
|
Alexandria, Va. : Time-Life Books, 1982, c1934.
|
6.
|
New York : Scientific American Library, c1983.
|
7.
|
New Haven [Conn.] : Yale University Press, c1984.
|
8.
|
New York, Columbia University Press, 1953.
|
9.
|
New York, Harcourt, Brace [1960]
|
10.
|
New York, Columbia University Press, 1961.
|