1
by Dahrendorf, Ralf
Published 1985
2
by Bush, Robert A. Baruch.
Published 1994
3
Published 2003
4
Published 1993
5
by Bowie, John
Published 1963
6
by Cheow, Eric Teo Chu.
Published 2006
7
by Cupach, William R.
Published 1997
8
by Wehr, Paul Ernest, 1937-
Published 1979
9
by Woddis, Jack
Published 1977
10
Published 1993
11
12
by Hutchinson, John, 1949-
Published 2005
13
by Tallman, Irving
Published 1976
14
by Lewis, Leslie P.
Published 1994
15
16
by Jeong, Ho-Won.
Published 2008
17
18
Published 1980
19
by Tichenor, Phillip J.
Published 1980
20
Published 1982