00530nam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100001900102245005500121260005700176300002600233650002100259700001800280710003800298CHAP20220329140550.0971013s1938            r     00010     d  a54031  a55003  a59155  cCHAP00aPoulson, E. N.  aSoil survey of the upper Gila Valley area, Arizona  a(Washington) :bBureau of Chemistry and Soils,c1938  a41 p.b: ilus. ; mapa14aSuelosxArizona.0 aYoungs, F. O.0 aE.U.A. Department of Agriculture.