Wiles, Kimball. Supervision for better schools. - 3rd ed. - Englewood Cliffs, NJ : Prentice-Hall, [1967] Bibliography: p. 313-328. LCCN: 67017410 Subjects--Topical Terms: School supervision -- Asia--School supervision -- Asia LC Class. No.: LB2805 / .W5 1967 Dewey Class. No.: 371.2/013