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Vital resources : reports on energy, food & raw materials
Rockefeller, Nelson A., (1977)
Commodity agreements within UNCTAD
Kühn, Jürgen, (1969)
Raw materials : beyond the rethoric of commodity power
Corbet, Hugh, (1975)
History of agriculture in the Northern United States 1620 - 1860
Bidwell, Percy W., (1925)
Rural economy in New England at the beginning of the 19th century
Bidwell, Percy W., (1972)
Latin America, Germany and the Hull program
Bidwell, Percy W., (1939)