TY  - BOOK
AU  - Haas,Kenneth Brooks
TI  - Professional salesmanship: persuasion and motivation in marketing : instructor’s manual 
U1  - 658.85 22
PY  - 1962///].
CY  - New York: 
PB  - Holt, Rinehart and Winston, 
KW  - Salesmen and salesmanship
ER  -