I: Regression and Experimental Design (Springer-Verlag, New York, 1991); Achen, Christopher H., Interpreting and Using Regression (Sage Publications, Beverly Hills, 1982); Berry, William D. and Feldman S., Multiple Regression in Practice (Sage Publications, Beverly Hills, 1985).
I: Regression and Experimental Design (Springer-Verlag, Nueva York, 1991); Achen, Christopher H., Interpreting and Using Regression (Sage Publications, Beverly Hills, 1982); Berry, William D. y Feldman S., Multiple Regression in Practice (Sage Publications, Beverly Hills, 1985).