1.
|
Pittsburgh, Pennsylvania : University of Pittsburgh Press, [2004] ©2004
|
2.
|
Chicago : University of Chicago Press, 2008.
|
3.
|
New York, New York : Open Road Integrated Media, 2016. ©1960
|
4.
|
Pittsburgh, Pennsylvania : University of Pittsburgh Press, [2008] ©2008
|
5.
|
Pittsburgh, Pennsylvania : University of Pittsburgh Press, 2009. ©2009
|
6.
|
Urbana : University of Illinois Press, c2006.
|
7.
|
New York : Knopf, 1968 [c1923]
|