Kerr, M. M., & Nelson, C. M. (1989). Strategies for managing behavior problems in the classroom (2nd ed.). Merrill.
Dyfyniad Arddull ChicagoKerr, Mary M., and C. Michael Nelson. Strategies for Managing Behavior Problems in the Classroom. 2nd ed. Columbus: Merrill, 1989.
Dyfyniad MLAKerr, Mary M., and C. Michael Nelson. Strategies for Managing Behavior Problems in the Classroom. 2nd ed. Merrill, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.