Cronbach, L. J. (1990). Essentials of psychological testing (5th ed.). National Book Store.
Dyfyniad Arddull ChicagoCronbach, Lee Joseph. Essentials of Psychological Testing. 5th ed. Manila: National Book Store, 1990.
Dyfyniad MLACronbach, Lee Joseph. Essentials of Psychological Testing. 5th ed. National Book Store, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.