1
by Boardman, Fon W.
Published 1966
2
by McKenzie, Richard B.
Published 1981
3
by Ormerod, Paul
Published 1997
4
by Canterbery, E. Ray
Published 1987
5
by Robbins, Lord
Published 1963
6
by Mannan, Muhammad Abdul, 1938-
Published 2001
7
by Bowden, Elbert V.
Published 1981
8
by Navaratnam, Ramon V.
Published 2003
9
Published 1952
10
Published 1997
11
12
by Galbraith, John Kenneth, 1908-
Published 1970
13
14
15
by James, Clifford L, 1903-
Published 1956
16
by Nasr, Zakariya Ahmad
Published 1980
17
18
Published 1952
19
20
Published 2000