61
by Hiro, Dilip
Published 2001
62
by Emmerson, John K.
Published 1987
63
Published 1992
64
Published 1994
65
by Mahapatra, Chintamani
Published 1998
66
by Daniel, Norman
Published 2000
67
Published 1992
68
by Sigur, Gaston J.
Published 1988
69
by Hansen, Allen C.
Published 1989
70
71
72
Published 1991
73
by Kitts, Charles R, 1947-
Published 1991
74
by Drifte, Reinhard
Published 2003
75
by Richmond, Yale
Published 1987
76
77
by Sodhy, Pamela
Published 1988
78
by Millard, Mike, 1945-
Published 2000
79
80