TY  - BOOK
AU  - Nijkamp, Peter.
AU  - Hafkamp, Wilhelmus A.,
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : operational methods and models 
SN  - 0471277630 (hardcover)
SN  - 2
PY  - 1980///.;copyright 1980.46
CY  - Chichester
PB  - John Wiley & Sons, Inc.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Mathematical models
KW  - Environmental policy
N1  - Includes bibliographical references and indexes; 5; Professional
ER  -