=LDR 00000nam a2200000ui 4500 =001 3593 =008 250530s1983\\\\xx\|||||||||||||||||eng\d =082 04$a658.4 033 =100 1\$aKillen, James =245 10$aMathematical programming methods for geographers and planners =260 \\$aLondon :$bCroom Helm,$c1983 =852 \\$bFreeman Library$cReserve$h658.4 033