TY  - BOOK
AU  - Ramakrishna G
AU  - Raman M V
TI  - Method to group the census industrial categories of workers
U1  - 312.9(5414) 
PY  - 1969///
CY  - Calcutta
PB  - ISI
KW  - Census
KW  - India
KW  - Industrial workers
ER  -