Chisholm, Margaret E. Media personnel in education : a competency approach / Margaret E. Chisholm, Donald P. Ely. - Englewood Cliffs, N.J. : Prentice-Hall, c1976. - vi, 378 p. : ill. ; 24 cm. Includes bibliographies and index. ISBN: 0135724619 LCCN: 75033054 Subjects--Topical Terms: Instructional materials personnel. LC Class. No.: LB 3044 / .C45