Velleman, P. F., & Wilkinson, L. (1994). Nominal, Ordinal, Interval and Ratio Typologies are Misleading. Trends and perspectives in empirical social research, 161-293.
Chicago Style (17th ed.) CitationVelleman, Paul F., and Leland Wilkinson. "Nominal, Ordinal, Interval and Ratio Typologies Are Misleading." Trends and Perspectives in Empirical Social Research 1994: 161-293.
MLA (8th ed.) CitationVelleman, Paul F., and Leland Wilkinson. "Nominal, Ordinal, Interval and Ratio Typologies Are Misleading." Trends and Perspectives in Empirical Social Research, 1994, pp. 161-293.
Warning: These citations may not always be 100% accurate.