Agriculture in 1973
Uncertainties in Peasant Farming: A Colombian Case
by
Ortiz, Sutti
Land of the Underground Rain: Irrigation on the Texas High Plains, 1910-1970
by
Green, Donald E.
Herbizide Und Kulturpflanzen
by
Arlt, Klaus, Feyerabend, Günter
Five Acres and Independence: A Handbook for Small Farm Management
by
Kains, Maurice G.
Thermobacteriology in Food Processing
by
Stumbo, C. R.