61
by Mackie, Benita, 1930-
Published 1995
62
by Beale, Walter H.
Published 1982
63
Published 1994
64
Published 2002
65
by McCaig, I. R
Published 1986
66
Published 1995
67
Published 1990
68
Published 1997
69
by Guth, Hans Paul.
Published 1975
70
by Nandy, Milon
Published 1997
71
Published 1992
72
by Awde, Nicholas
Published 1999
73
Published 1999
74
75
by Spears, Richard A.
Published 1991
76
by Crabb, George
Published 1966
77
by Nakao, Seigo
Published 1997
78
Published 1965
79
Published 1993
80
Published 1987