TY  - BOOK
AU  - Nagaraja, Y.R.
AU  - Oswal, H.L. Gu.
TI  - Distortions in aerial photographs
U1  - 624.072 
PY  - 1960///
CY  - Roorkee
PB  - Deptt.of Civil Engg. Univ.of Roorkee
ER  -