41
by Theraja, B.L.
Published 1999
42
by Douglas, John F.
Published 2001
43
by Sheperd J.
Published 1977
44
by Inman, D.J.
Published 2001
45
by Green, D. C.
Published 1997
46
47
48
by Green, D. C.
Published 1995
49
by Thomas, Andrew.
Published 1999
50
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52
by Weedy, B. M.
Published 1987
53
by Lewis, Richard.
Published 1985
54
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58
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60