00351nam a2200109Ia 4500008004100000082002000041100005900061245003500120260004900155300000600204490003100210250701b        |||||||| |||| 00| 0 eng d  a309.31bOp61.SA  aOpen University, Social Sciences a second level course  aSpatial analysis. Section 2b/  aMilton Keynes:bOpen University Press,c1977  a   aD204 Section II Units 9-12