Fox, R. (1966). Diagnosing classroom learning environments. SRA Publishers.
Dyfyniad Arddull ChicagoFox, Robert. Diagnosing Classroom Learning Environments. Chicago: SRA Publishers, 1966.
Dyfyniad MLAFox, Robert. Diagnosing Classroom Learning Environments. SRA Publishers, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.