APA (7. basım) Alıntı

BLY ROBERT W. (1991). SELLING YOUR SERVICES. HENRY HOLT.

Chicago Style (17. basım) Atıf

BLY ROBERT W. SELLING YOUR SERVICES. NEW YORK: HENRY HOLT, 1991.

MLA (9th ed.) Atıf

BLY ROBERT W. SELLING YOUR SERVICES. HENRY HOLT, 1991.