1
2
Published 2003
3
Published 1987
4
by Dickinson, Peter R
Published 2004
5
Published 1995
6
Published 1995
7
Published 2003
8
Published 1987
9
by Byram, Richard J.
Published 1979
10
Published 1980
11
by Bockl, George
Published 1983
12
13
by SMITH, Peter R.
Published 1976
14
by Adams, E. C.
Published 1964
15
Published 1992
16
17
by Hassan, George
Published 1996
18
Published 1966
19
by Maver, Thomas W
Published 1971
20
Published 1965