1
by Walker, R.J.
Published 1985
2
by Hammet, Barbara
Published 2004
3
by Smith, J.C
Published 1987
4
by Ashworth, Andrew
Published 2003
5
6
by Hildred, Stafford
Published 2004
7
by Rogers, W.V.H.
Published 1989
8
by Gerrard, Steven
Published 2012
9
10
by Miles, Barry
Published 2003
11
by Spitz, Marc
Published 2009
12
by Elliot, Catherine
Published 2004
13
by Treitel, G.H.
Published 1991
14
by Crofton, Ian
Published 2008
15
by Whittaker, D.H
Published 1997
16
by Richards, Paul H.
Published 1997
17
by Lunney, Mark
Published 2008
18
by Jacobs, Allan
Published 2005
19
by Card, Richard
Published 2006
20
by Martin, Jill E.
Published 2008