TY  - BOOK
ED  - Appreciation Seminar on Use of Air Photo-Interpretation in Survey and Mapping of Natural Resources :
TI  - Appreciation seminar on use of air photo-interpretation in survey and mapping of natural resources: proceedings
U1  - 333.7015269 21st ed.
PY  - 1972///
CY  - Dehradun
PB  - Indian Photo-Interpretation Institute
KW  - Conference
KW  - Mapping
KW  - Natural resources
KW  - Photo interpretation
KW  - Photogrammetry
KW  - Remote sensing
KW  - Surveying
ER  -