TY  - BOOK
AU  - Wilson, Pitiyage
TI  - Introductions of supply and demand factors ; regional variations of labour force participation in Sri Lanka ; a dissertation in demography
U1  - 331.12095493 
PY  - 1981///
PB  - University of Pennsylvania; Pennsylvania
KW  - Labor Economics
KW  - Production
N1  - PhD thesis submitted to University of Pennsylvania
ER  -