The art of nonverbal selling : let your customer's unspoken signals lead you to the close. /
Gschwandtner Gerhard
- New York : McGraw-Hill, 2007.
- 242 p. : ill. ; 25 cm
978-0-07-147586-0
Selling.--Psychological aspects. Body language. Sales personnel--Training of--Handbooks, manuals, etc.