Voice Over IP Fundamentals (Cisco Press Fundamentals Series)
by Jonathan Davidson, James Peters, Brian Gracely
ISBN 13: 9781578701681
Format: Hardcover (408 pages) Publisher: Cisco Press Published: 27 Mar 2000
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The Anxiety Book: Developing Strength in the Face of Fear
by Jonathan Davidson
ISBN 13: 9781573223768
Format: Paperback (320 pages) Publisher: Riverhead Books,U.S. Published: Mar 2004
Humfrey Coningsby
ISBN 13: 9781908853486
Format: Paperback (38 pages) Publisher: Valley Press Published: 24 Apr 2015