TY  - BOOK
AU  - Klaassen,Leo H.
AU  - Paelinck,Jean H.P.
AU  - Wagenaar,Sjoerd
TI  - Spatial systems: a general introduction 
SN  - 0566002639 (hardback.)
AV  - HN18 KLA 
PY  - 1979///
CY  - Farnborough, England
PB  - Saxon House
KW  - Social policy
KW  - Mathematical models
KW  - Spatial systems
N1  - Includes bibliographies and index
ER  -