TY  - BOOK
AU  - Watson, David F.
TI  - Contouring: a guide to the analysis and display of spatial data: with programs on diskette
T2  - Computer methods in the geosciences
SN  - 0080402850
U1  - 526.981, 
PY  - 1992///
CY  - Oxford
PB  - Pergamon Press
ER  -