Holtje, H. F. (1981). Schaum's outline of theory and problems of marketing. Mc graw hill book company.
Chicago Style citaatHoltje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. New York: Mc graw hill book company, 1981.
MLA citatieHoltje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. Mc graw hill book company, 1981.
Let op: Deze citaties zijn niet altijd 100% accuraat.