Broadwell, Martin M. The supervisor as an instructor : a guide for classroom training / Martin M. Broadwell. - 4th ed. - Reading, Mass. : Addison-Wesley, c1984. - xv, 241 p. : ill. ; 21 cm. Includes index. ISBN: 0201103567 (pbk.) : Subjects--Topical Terms: Teaching.School supervisors. Dewey Class. No.: 371.102 / BRS 1984