Cita APA (7a ed.)

Worcester, R. M., & Downham, J. (1988). Consumer market research handbook ([3rd rev. and enl. ed.].). ESOMAR.

Cita Chicago Style (17a ed.)

Worcester, Robert M., y John Downham. Consumer Market Research Handbook. [3rd rev. and enl. ed.]. Amsterdam: ESOMAR, 1988.

Cita MLA (9a ed.)

Worcester, Robert M., y John Downham. Consumer Market Research Handbook. [3rd rev. and enl. ed.]. ESOMAR, 1988.