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Author

Graham Francis Donaldson

5 books found

Placeholder cover for Farm machinery capacity

Farm machinery capacity

Graham Francis Donaldson · First published 1970

Placeholder cover for Farm machinery testing

Farm machinery testing

Graham Francis Donaldson · First published 1970

Cover of Optimum harvesting systems for cereals

Optimum harvesting systems for cereals

Graham Francis Donaldson · First published 1970

Cover of An operating procedure for simulation farm planning--

An operating procedure for simulation farm planning--

Graham Francis Donaldson · First published 1968

Placeholder cover for Farm machinery safety

Farm machinery safety

Graham Francis Donaldson · First published 1968