1
by Gilpin, Robert
Published 1987
2
by Evans, John W.
Published 1971
3
Published 1994
4
by Gill, Stephen, 1950 -
Published 1988
5
by Fawcett, J. E. S, 1913-
Published 1977
6
by Williams, Marc
Published 1994
7
by Walther, Ted
Published 1997
8
Published 1996
9
Published 1995
10
Published 1995
11
Published 1994
12
by Garnaut, Ross
Published 1994
13
Published 1992
14
by Husted, Steven L.
Published 2007
15
by Lindert, Peter H.
Published 1986
16
by Husted, Steven L.
Published 1995
17
by Jepma, C.J.
Published 1996
18
by Brown, Wilson B, 1938-
Published 1994
19
Published 1985
20
by Mulroney, Brian, 1939-
Published 1990