TY  - BOOK
AU  - Perraton,Hilary
TI  - Alternative routes to formal education : distance teaching for school equivalency 
SN  - 0801825873
U1  - 374.4 
PY  - 1982///.
CY  - Baltimore : 
PB  - Johns Hopkins University Press, 
KW  - Non-formal education
KW  - Correspondence schools and courses
KW  - Distance education
ER  -