Dillon, W., Firtle, N. H., & Madden, T. J. (1993). Essentials of marketing research. McGraw-Hill.
Cita Chicago Style (17a ed.)Dillon, William, Neil H. Firtle, y Thomas J. Madden. Essentials of Marketing Research. Boston: McGraw-Hill, 1993.
Cita MLA (9a ed.)Dillon, William, et al. Essentials of Marketing Research. McGraw-Hill, 1993.
Precaución: Estas citas no son 100% exactas.