Springhouse Corporation. (1997). Assessment made incredibly easy ! Pennsylvania, USA: Springhouse.
Dyfyniad Arddull ChicagoSpringhouse Corporation. Assessment Made Incredibly Easy ! Pennsylvania, USA: Springhouse, 1997.
Dyfyniad MLASpringhouse Corporation. Assessment Made Incredibly Easy ! Pennsylvania, USA: Springhouse, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.