1
by Tortora
Published 2009
2
by Tortora
Published 2010
3
by Tortora
Published 2001
4
by Tortora
Published 2007
5
6
by Tortora
Published 2009
7
by Tortora
Published 2004
8
by Tortora
Published 2004
9
by Tortora
Published 2001
10
by Tortora
Published 2002
11
by Tortora
Published 2002
12
by Tortora
Published 2000
13
by Tortora
Published 1998
14
by Tortora
Published 2001
15
by Tortora
Published 2007
16
by Tortora
Published 2006
17
by Tortora
Published 2006
18
by Tortora, Gerard J.
Published 2013