TY  - BOOK
AU  - Erdos, Renee F.
TI  - Teaching by correspondence: : a study undertaken by renee f. erdos head of the school of external studies sydney technical college, australia on behalf of unesco
U1  - 371.102 
PY  - 1967///
CY  - Paris
PB  - ; Longman
KW  - Education
KW  - Teaching
ER  -