Ward, J. H., & Jennings, E. (1973). Introduction to linear models. Prentice-Hall.
Dyfyniad Arddull ChicagoWard, Joe H., and Earl Jennings. Introduction to Linear Models. Englewood Cliffs, N.J: Prentice-Hall, 1973.
Dyfyniad MLAWard, Joe H., and Earl Jennings. Introduction to Linear Models. Prentice-Hall, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.