00286nam a2200109Ia 4500082002400000100001700024245005200041260003400093300003900127500000500166700000500171  a309.100182bEb15.SG  aEbdon, David  aStatistics in geography; a practical approachb  aOxfordbBasil Blackwellc1977  aviii, 195p. Index, Appendix, Table  a  a