Hopkins, D. (2008). A teacher's guide to classroom research. Maidenhead: McGraw Hill/Open University Press.
Dyfyniad Arddull ChicagoHopkins, David. A Teacher's Guide to Classroom Research. Maidenhead: McGraw Hill/Open University Press, 2008.
Dyfyniad MLAHopkins, David. A Teacher's Guide to Classroom Research. Maidenhead: McGraw Hill/Open University Press, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.