1.
|
New York, Washington Square Press [1966]
|
2.
|
Minneapolis : University of Minnesota Press, 1961.
|
3.
|
Minneapolis, University of Minnesota Press [1961]
|
4.
|
Garden City, N.Y., Doubleday, c1960.
|
5.
|
Lafayette, Ind., Purdue University Studies, 1969.
|
6.
|
Minneapolis, MN : University of Minnesota Press, 1968.
|
7.
|
Minneapolis, University of Minnesota Press [1968]
|