00736nam a22002537a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100001800102245010200120260004200222300000900264490003200273650002400305650002300329650002200352650003300374650002200407650002100429830003200450CHAP20220329140058.0971013s1975            r     00010     d  a46667  a47639  a51782  cCHAP00aTiller, K. G.  aSampling and analysis errors in the estimation of cooper, cadmium, zinc and lead in surface soils  a(s.l.) :bCSIRO. Div. of Soils,c1975  a7 p.  aDivisional reportv; 3/197514aSuelosxAnálisis.14aSuelosxCadmio en.14aSuelosxCobre en.14aSuelosxElementos minerales.14aSuelosxPlomo en.14aSuelosxZinc en.0 aDivisional reportv; 3/1975