Gaya APA
Kellar, Robert E.. (1997).
Sales negotiation skills that sell .
New York:
Amacom.
Gaya Chicago
Kellar, Robert E..
Sales negotiation skills that sell.
New York:
Amacom,
1997.
Text.
Gaya MLA
Kellar, Robert E..
Sales negotiation skills that sell.
New York:
Amacom,
1997.
Text.
Gaya Turabian
Kellar, Robert E..
Sales negotiation skills that sell.
New York:
Amacom,
1997.
Print.