APA (7th ed.) Zitazioa

West, C. D. (1987). Essentials of quantitative analysis. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

West, C. David. Essentials of Quantitative Analysis. New York: McGraw-Hill, 1987.

MLA (9th ed.) Zitazioa

West, C. David. Essentials of Quantitative Analysis. McGraw-Hill, 1987.