21
by Goldstein, Joshua S.
Published 1994
22
Published 1994
23
by Marsh, Steve, 1967-
Published 2005
24
Published 2007
25
by Nye, Joseph S.
Published 2007
26
by Rourke,John T
Published 2004
27
Published 1989
28
29
by Pakem, B.
Published 1992
30
by Brown, Chris
Published 1992
31
by Couloumbis, Theodore A.
Published 1990
32
by Malhotra, Vinay Kumar, Dr.
Published 1993
33
by Hocking, Brian
Published 1993
34
by Goldmann, Kjell
Published 1994
35
by Brown, Seyom
Published 1996
36
37
by Cassese, Antonio
Published 1986
38
39
Published 2007
40
by Richmond, Oliver P.
Published 2008