D.Lee, D. .. (1984). Industrial marketing research: Techniques & practices (2nd ed.). Van Nostrand Reinhold.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)D.Lee, Donald .. Industrial Marketing Research: Techniques & Practices. 2nd ed. New York: Van Nostrand Reinhold, 1984.
MLA -ийн эшлэл (9 дэх хэвлэлт)D.Lee, Donald .. Industrial Marketing Research: Techniques & Practices. 2nd ed. Van Nostrand Reinhold, 1984.