61
by RODDY
Published 1984
62
by HORN
Published 1993
63
by GREEN
Published 1995
64
by GATES
Published 1998
65
by KNIGHT
Published 1996
66
by GREEN
Published 1995
67
by COOK
Published 1993
68
Published 1994
69
by GREEN
Published 1995
70
by HAZEN
Published 1991
71
Published 1994
72
by HOWE
Published 1997
73
by RYDER
Published 1967
74
by ZBAR
Published 1994
75
by HOLLAND
Published 1996
76
by Grob
Published 1997
77
by TEMES
Published 1998
78
by Boylestad
Published 1996
79
by SLURZBERG
Published 1973
80
by RIDDLE
Published 1995