00610nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001800102100002800120245010100148260005200249300002000301490003100321650002100352830003100373CHAP20220329135538.0971013s1950            r     00010     d  a38280  a39252  a43372  cCHAP  a634.9751bP4300aPearson, Gustaf Adolph.  aManagement of ponderosa pine in the southwest as developed by research and experimental practice  aWashington :bDepartament of Agriculture,c1950  a218 p.b: ilus.  aAgriculture monographv; 614aPinus ponderosa.0 aAgriculture monographv; 6