D.Glickman,Carld,P.Gordman,Stephen,M.Ross-Gordon,Jovita Super Vision And Instructional Leadership A Developmental Approach - A Pearson Education Company Needham Heights 2001 - 496p 1 - 2023-12-04 ISBN: 0-205-32202-6 Nat. Bib. No.: 0008931 Nat. Bib. Agency Control No.: GLI Universal Decimal Class. No.: 371.2