APA-referens (7:e uppl.)

LEHMANN DONALD R. (1985). MARKET RESEARCH AND ANALYSIS (2ND.). IRWIN.

Chicago-referens (17:e uppl.)

LEHMANN DONALD R. MARKET RESEARCH AND ANALYSIS. 2ND. HOMWOOD: IRWIN, 1985.

MLA-referens (9:e uppl.)

LEHMANN DONALD R. MARKET RESEARCH AND ANALYSIS. 2ND. IRWIN, 1985.