TY  - BOOK
AU  - Diyasena W.
TI  - Pre-vocational education in Sri Lanka
T2  - Experiment and innovation in education
U1  - T9(Y4).4498, L6 
PY  - 1976///
CY  - Paris
PB  - Unesco Press      
KW  - EDUCATION
N1  - Appendix p 45--50
ER  -