Cita APA (7a ed.)

Lehmann, D. R. (1979). Market research and analysis. Irwin.

Cita Chicago Style (17a ed.)

Lehmann, Donald R. Market Research and Analysis. Homewood: Irwin, 1979.

Cita MLA (9a ed.)

Lehmann, Donald R. Market Research and Analysis. Irwin, 1979.