Vasconcelos, Kelly Samá Lopes de, Universidade Federal de Pernambuco - UFPE, Brazil
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Revista em Agronegócio e Meio Ambiente Vol 6 No 2 (2013): maio/ago. - Agrobusiness
Mechanization of Agriculture: Demand for Tractors and Agricultural Machines in the Northeastern States of Brazil
Abstract PDF (Português (Brasil))