1.
Money-Making 900 Numbers: How Entrepreneurs Use the Telephone to Sell Information - Carol Mo...
by Ginsburg, Carol M., Mastin,...
ISBN: 9780963279019
2.
Nine Hundred Know-how: How to Succeed with Your Own 900 Number Business
by Mastin, Robert, Ginsburg, C...
ISBN: 9780963279064
List Price: $19.95