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Oilseed rape. - 1986. - VI, 32 S.
Silage. - 1986. - VI, 32 S.
Overseas aid and the transfer of technology : a political economy of agricultural mechanisation in the Third World
Burch, David, (1987)
The adoption of technology in agriculture
Improved grassland management in hill sheep farming systems. - 1986. - VI, 28 S.