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 Feyerabend, Günter, Arlt, Klaus

Five Acres and Independence: A Handbook for Small Farm Management by Kains, Maurice G.

Thermobacteriology in Food Processing by Stumbo, C. R.