01431cam a2200325   4500001001300000003000400013005001700017008004100034010001700075040003600092050002400128070002300152110005100175245018900226260002400415300001800439410002200457500001700479500003800496500006000534500012700594650002000721650003400741650002600775650001600801700004400817710004700861710007500908710012200983agr68000253 DLC20260227111031.0691103s1968    dcu           000 0 eng c  aagr68000253   aU.S. Nat'l Agr. Libr.cDLCdDLC10aSB19b.A384 no. 1020 aA64.9 R31A no. 1021 aUnited States.bAgricultural Research Service.10aExtent and cost of weed control with herbicides and an evaluation of important weeds, 1965c[by] Agricultural Research Service, Federal Extension Service and Economic Research Service.  a[Washington]c1968.  a85 p.c25 cm.11aItstARS 34-v102  aCover title.  aAt head of title: Crops research.  aInformation was compiled by L. L. Danielson and others.  aSupersedes its A survey of extent and cost of weed control and specific weed problems, issued in 1965, as its ARS-34-23-1. 0aWeedsxControl. 3aWeedsxEradication (Chemical) 3aWeedszUnited States. 3aHerbicides.1 aDanielson, L. L.q(Loran Leroy),d1913-1 aUnited States.bFederal Extension Service.1 aUnited States.bDepartment of Agriculture.bEconomic Research Service.1 aUnited States.bAgricultural Research Service.tSurvey of extent and cost of weed control and specific weed problems.