TY  - BOOK
ED  - UNESCO .
TI  - A Handbook for the Improvement of Textbooks and Teaching Materials as Aids to International Understanding
U1  - 371.32 
PY  - 1949///
CY  - Paris
PB  - UNESCO
KW  - Education
KW  - Handbook-Teaching Materials as Aids
KW  - G-Education
ER  -