APA (7th ed.) Citation

Day, R. A., & Underwood, A. (1991). Quantitative analysis (6th edition.). Goodwill.

Chicago Style (17th ed.) Citation

Day, R. A., and A.L Underwood. Quantitative Analysis. 6th edition. Manila: Goodwill, 1991.

MLA (9th ed.) Citation

Day, R. A., and A.L Underwood. Quantitative Analysis. 6th edition. Goodwill, 1991.

Warning: These citations may not always be 100% accurate.