1
Published 1992
2
by Duncan, W. Raymond, 1936-
Published 1990
3
Published 1983
4
by Hough, Jerry F.
Published 1985
5
by Orme, John David
Published 1989
6
by Brands, H. W.
Published 1989
7
Published 1989
8
9
Published 2006
10
by Cingranelli, David L.
Published 1993
11
Published 1990
12
Published 1989
13
by Goodman, Melvin A, 1938-
Published 1991
14
by Ollapally, Deepa Mary
Published 1993
15
16
by Torres, J. F.
Published 1993
17
by Odom, William E.
Published 1992
18
19
by Hamilton, John Maxwell
Published 1990