@book{114483,
	author = {Ackerman, J. Mark},
	title = {Aplicación de las técnicas de condicionamiento operante en la escuela},
	publisher = {Santillana},
	year = {1976.},
	series = {Aula XXI},
	address = {Madrid},
	note = {Translation of : Operant conditioning techniques for the classroom teacher.}
}