На данной странице предаставлены все книги автора «Gerhard Gschwandtner»
The Pocket Guide to Selling Greatness (Sellingpower) (Gerhard Gschwandtner)
201 Super Sales Tips: Field-Tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time (Sellingpower Library) (Gerhard Gschwandtner)