61
by Cohen, William A.
Published 1991
62
by Dillmann, John.
Published 1989
63
Published 2003
64
by Wight, F.G.
Published 1971
65
by Fraser, Eva.
Published 1991
66
67
68
by Wong, I.F.T.
Published 1977
69
Published 1962
70
71
Published 1991
72
by Kwok, Man-Ho.
Published 1994
73
by Black, William.
Published 1978
74
by Jenkins, Alan C
Published 1969
75
Published 1996
76
by Patten, Brian
Published 1995
77
78
by Harris, Thomas A.
Published 1970
79
by Farber, Barry J.
Published 1995
80
by Stone, R.H.
Published 1964