American educator encyclopedia. Vol.4. D-E-F.
SENTMAN (Everette Edgar) and Others Ed.
American educator encyclopedia. Vol.4. D-E-F. - Chicago The United Educators, Inc. 1961 - 1017-1429 - 4 .
040/123
American educator encyclopedia. Vol.4. D-E-F. - Chicago The United Educators, Inc. 1961 - 1017-1429 - 4 .
040/123