High - powered tractors and their implements, including aspects of their impact on the soil
Dvortsov, E. F.
High - powered tractors and their implements, including aspects of their impact on the soil - New York : United Nations, 1979 - [20] p. : gráfs. - AGRI/MECH report ; 80 . - AGRI - MECH report ; 80 .
67390
Labranza--Efecto en suelos
Tractores.
High - powered tractors and their implements, including aspects of their impact on the soil - New York : United Nations, 1979 - [20] p. : gráfs. - AGRI/MECH report ; 80 . - AGRI - MECH report ; 80 .
67390
Labranza--Efecto en suelos
Tractores.