TY  - BOOK
AU  - Petrie, G
AU  - Kennie, T.J.M
TI  - Terrain Modelling In Surveying And Civil Engineering
U1  - commerce 
PY  - 1991///
PB  - MCGRAW -HILL
KW  - Civil
KW  - 382
KW  - civil engineering
KW  - surveying
KW  - terrain modelling
ER  -