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Changes in Farm Power and Equipment: Tractors, Trucks and Automobiles , Eugene G. McKibben and R. Austin Griffin. Works Progress Administration National Research Project Report No. A‐9 and Changes in Farm Power and Equipment: Field Implements , Eugene G. McKibben, John A. Hopkins and R. Austin Griffin. Works Progress Administration National Research Project Report No. A‐11
Author(s) -
Robertson Lynn
Publication year - 1940
Publication title -
american journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.949
H-Index - 111
eISSN - 1467-8276
pISSN - 0002-9092
DOI - 10.2307/1231955
Subject(s) - truck , automotive engineering , power (physics) , aeronautics , engineering , transport engineering , business , quantum mechanics , physics

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