00856nam a2200229   4500001001300000003000400013005001700017008004100034010001900075040004500094050002900139082002000168100003200188245009100220260014900311300003000460440004400490504002800534650003100562650001600593999001700609agr67000032 DLC20260227111025.0850805s1966    dcua         f00010 eng c  aagr67000032 /L  aU.S. Nat'l Agr. Libr. A281.9Ag8A no. 1030 aHD1751b.A91854  no. 1030 a658.83/8/62922510aFox, Austin Schultz,d1923-10aDemand for farm tractors in the United States,ba regression analysisc[by Austin Fox.0 aWashington]bEconomic Research Service, U.S. Dept. of Agriculture;a[for sale by the Superintendent of Documents,bU.S. Govt. Print Off.,c1966]  aiv, 50 p.billus.c27 cm. 0aAgricultural economic report ;vno. 103  aBibliography: p. 48-50. 0aTractors [in agriculture]. 3aFarm power.  c12148d12148