APA
Gschwandtner G., . (2006). 201 Super Sales Tips: Field-Tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. : McGraw-Hill Education.
Chicago
Gschwandtner Gerhard, . 2006. 201 Super Sales Tips: Field-Tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. : McGraw-Hill Education.
Harvard
Gschwandtner G., . (2006). 201 Super Sales Tips: Field-Tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. : McGraw-Hill Education.
MLA
Gschwandtner Gerhard, . 201 Super Sales Tips: Field-Tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. : McGraw-Hill Education. 2006.