APA (7th ed.) Citation

Day, R. L. (1964). Marketing models: Quantitative and behavioral. International Textbook.

Chicago Style (17th ed.) Citation

Day, Ralph L. Marketing Models: Quantitative and Behavioral. Scranton: International Textbook, 1964.

MLA (9th ed.) Citation

Day, Ralph L. Marketing Models: Quantitative and Behavioral. International Textbook, 1964.