00776cam a22002051 4500 e 40000275 DLC 20260227111228.0 760923s1940 dcu 000 0 eng c e 40000275 (OCoLC)2460420 U.S Off. of educ. Library OCU OCU OCoLC DLC premarc LB2805 .A472 American Association of School Administrators. Committee on certfication of superintendents of schools. The superintendent of schools and his work; final report of the Committee on certification of superintendents of schools. Washington, D.C., American association of school administrators, c1940. 48 p. 23 cm. School superintendents. 21708 21708