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2 matches for "Dirk Zeller"

Telephone Sales For Dummies (0470168366) cover image
Telephone Sales For Dummies
by Dirk Zeller
November 2007, Paperback
Mastering the World of Selling: The Ultimate Training Resource from the Biggest Names in Sales (0470617861) cover image
Mastering the World of Selling: The Ultimate Training Resource from the Biggest Names in Sales
by Eric Taylor, David Riklan, Jeffrey Gitomer (Foreword by)
August 2010, Paperback