Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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