TY  - BOOK
AU  - Perraton,H.D.
TI  - Alternative routes to formal education: distance teaching for school equivalency 
SN  - 0801825873
U1  - 374.4 
PY  - 1982///
CY  - Baltimore
PB  - Published for the World Bank [by] Johns Hopkins University Press
KW  - Non-formal education
KW  - Correspondence schools and courses
ER  -