TY  - BOOK
AU  - Census of India, 1951
TI  - Economic classification by age group 1951 census. Uttar Pradesh
U1  - Y:5.252sN51 
PY  - 1951///
CY  - Uttar Pradesh 
PB  - Govt. Press        
N1  - Paper No. 3 of 1955
ER  -