TY  - GEN
AU  - Ariyaratne , A.T.
AU  - Ratnapala , Nandasena ;ed.
TI  - Collected works vol; 1
SN  - 9555991421
U1  - 307.14 
PY  - 1978///
CY  - Rathmalana
PB  - Vishva Lekha
KW  - SOCIOLOGY
KW  - COMMUNITY DEVELOPMENT
ER  -