Huitema, B. E. (1980). The analysis of covariance and alternatives. John Wiley.
Cita Chicago (17th ed.)Huitema, Bradley E. The Analysis of Covariance and Alternatives. New York: John Wiley, 1980.
Cita MLA (9th ed.)Huitema, Bradley E. The Analysis of Covariance and Alternatives. John Wiley, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.