Holtje, H. F. (1981). Schaum's outline of theory and problems of marketing. Mc graw hill book company.
Chicago-стиль цитированияHoltje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. New York: Mc graw hill book company, 1981.
MLA-цитированиеHoltje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. Mc graw hill book company, 1981.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.