TY  - BOOK
AU  - Wright, John.
TI  - Ground and Air survey for field Scientists / 
SN  - 0-19-857560-2
U1  - D:2 
PY  - 1971///
CY  - Oxford OX2 6DP : 
PB  - Oxford University press , 
KW  - Engineering <Air Survey>
ER  -