Ackerman, J. Mark, 1939- Operant conditioning techniques for the classroom teacher / [By] J. Mark Ackerman. - Glenview, Ill. : Scott, Foresman, [1972]. - ix, 143 p. : ill. ; 23 cm. - 370.15/2 . Bibliogr.: p. 138. Subjects--Topical Terms: Learning, Psychology of.Operant conditioning Dewey Class. No.: 370.15/2