TY  - BOOK
AU  - Hansan, Mack
AU  - Cribbin, James
AU  - Donis, Jack
TI  - Systems selling strategies
SN  - 0814454607
U1  - 658.8 
PY  - 1978///
CY  - New York
PB  - AMACOM
KW  - Selling
KW  - System analysis
ER  -