APA (7th ed.) Citation

Downham, J., & Worcester, R. M. (1986). Consumer market research handbook (3rd revised and enlarged ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Downham, John, and Robert M. Worcester. Consumer Market Research Handbook. 3rd revised and enlarged ed. London: McGraw-Hill, 1986.

MLA (9th ed.) Citation

Downham, John, and Robert M. Worcester. Consumer Market Research Handbook. 3rd revised and enlarged ed. McGraw-Hill, 1986.