Long, J. S. (1988). Common problem/proper solution: Avoiding error in quantitative research. NewBurry Park, Calif. : Sage Pub..
Dyfyniad Arddull ChicagoLong, J. Scott. Common Problem/proper Solution: Avoiding Error in Quantitative Research. NewBurry Park, Calif. : Sage Pub., 1988.
Dyfyniad MLALong, J. Scott. Common Problem/proper Solution: Avoiding Error in Quantitative Research. NewBurry Park, Calif. : Sage Pub., 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.