RIES AL. (1993). 22 IMMUTABLE LAWS OF MARKETING VIOLATE THEM AT YOUR OWN RISK. INDUS PUBLISHING COMPANY.
Chicago (17e ed.) BronvermeldingRIES AL. 22 IMMUTABLE LAWS OF MARKETING VIOLATE THEM AT YOUR OWN RISK. NEW DELHI: INDUS PUBLISHING COMPANY, 1993.
MLA (9e ed.) BronvermeldingRIES AL. 22 IMMUTABLE LAWS OF MARKETING VIOLATE THEM AT YOUR OWN RISK. INDUS PUBLISHING COMPANY, 1993.
Let op: Deze citaties zijn niet altijd 100% accuraat.