1
by Shelly, Gary B.
Published 1998
Subjects: '; ...Business enterprises -- communications...
2
by Shelly, Gary B.
Published 2004
Subjects: '; ...Business -- Communication systems -- Data processing....
3
by Shelly, Gary B.
Published 2001
Subjects: '; ...Business enterprises -- Communication systems....
4
Subjects: '; ...Business presentations - Graphic methods - Computer programs....