TY  - BOOK
ED  - Irrigation Research Institute.
TI  - Annual report for the year 1950. / 
U1  - 530 ANN 1950 
PY  - 1950///
CY  -  Lahore: 
PB  - Irrigation research institute; 
KW  - Tubewells | Testing of materials | Index
N1  - Tube wells

; Lining of channels; Investigation on seepage
ER  -