APA (7e ed.) Bronvermelding

BENNETT GREG. (2007). CONSULTATIVE CLOSING: SIMPLE STEPS THAT BUILD RELATIONSHIPS AND WIN EVEN THE TOUGHEST SALE. AMERICAN MANAGEMENT ASSOCIATION.

Chicago (17e ed.) Bronvermelding

BENNETT GREG. CONSULTATIVE CLOSING: SIMPLE STEPS THAT BUILD RELATIONSHIPS AND WIN EVEN THE TOUGHEST SALE. NEW YORK: AMERICAN MANAGEMENT ASSOCIATION, 2007.

MLA (9e ed.) Bronvermelding

BENNETT GREG. CONSULTATIVE CLOSING: SIMPLE STEPS THAT BUILD RELATIONSHIPS AND WIN EVEN THE TOUGHEST SALE. AMERICAN MANAGEMENT ASSOCIATION, 2007.