American educator encyclopedia. Vol.3. C.
SENTMAN (Everette Edgar) and Others Ed.
American educator encyclopedia. Vol.3. C. - Chicago The United Educators, Inc. 1961 - 623-1016 - 3 .
040/122
American educator encyclopedia. Vol.3. C. - Chicago The United Educators, Inc. 1961 - 623-1016 - 3 .
040/122