00244nam a2200109Ia 4500082001800000100002000018245002500038260003400063300002700097500000500124700000500129  a309.3bJ73.OH  aJohnston, R. J.  aOn human geographyb  aOxfordbBasil Blackwellc1986  avi, 198p. Index, Bibl.  a  a