TY  - GEN
AU  - Petrie,C.
AU  - Kennie,T.J.M.
TI  - Terrain modelling in surveying and civil engineering
SN  - 1870325303
PY  - 1990///
CY  - London
PB  - Whittles Publishing
KW  - Surveying
KW  - Maps
KW  - Digital mapping
KW  - Civil engineering
ER  -