Erwin, Gayle D. Mastering The Methods : Multimedia Teaching Kit [Text] Erwin, Gayle D - Gospel Publishing House Springfield, Missouri 1990 - 80p. ; Pb ISBN: 150.00 LCCN: 039661 Subjects--Topical Terms: Christian education -- methods -- studyMultimedia Teaching Dewey Class. No.: 268.6 / E73M