1
by Silberman
Published 1985
2
by Omi
Published 1994
3
by Hooks
Published 1994
4
by Small
Published 1994
5
by Mooney
Published 2007
6
by Woodiwiss
Published 1993
7
by Stimson
Published 1991
8
by Eitzen
Published 2006
9
by Naisbitt
Published 1990
10
11
by Curran
Published 1993
12
by Eitzen
Published 1994
13
Published 2003