APA (7th ed.) Citation

Day, R. L., & Ness, T. E. (1971). Marketing models: Quantitative applications. Intext Educational Publications.

Chicago Style (17th ed.) Citation

Day, Ralph L., and Thomas E. Ness. Marketing Models: Quantitative Applications. Scranton: Intext Educational Publications, 1971.

MLA (9th ed.) Citation

Day, Ralph L., and Thomas E. Ness. Marketing Models: Quantitative Applications. Intext Educational Publications, 1971.