00643nam a2200205 a 450000500170000000800410001701000170005802000170007504000230009205000160011508200230013124500720015426000320022630000380025849000350029650400250033165000360035665000260039270000190041820181210010937.0750924s1975    enkak    b    000 0 eng    a   75325122   a0540009849 :  aDLCcDLCdBD-DhBPA00aG70.3b.S25  a910.9076bDAS 197500aSampling techniques in geography /c[by] Roger Dalton ... [et al.].  aLondon :bG. Philip,c1975.  aiv, 95 p. :bill., form ;c25 cm.0 aModern techniques in geography  aBibliography: p. 88. 0aGeographyxStatistical methods. 0aSampling (Statistics)1 aDalton, Roger.