APA
Thomas Freese, . (2003). Secrets of Question Based Selling - how the powerful tool in business can double your sales results. : Sourcebooks Inc.
Chicago
Thomas Freese, . 2003. Secrets of Question Based Selling - how the powerful tool in business can double your sales results. : Sourcebooks Inc.
Harvard
Thomas Freese, . (2003). Secrets of Question Based Selling - how the powerful tool in business can double your sales results. : Sourcebooks Inc.
MLA
Thomas Freese, . Secrets of Question Based Selling - how the powerful tool in business can double your sales results. : Sourcebooks Inc. 2003.