Jonasson, O. (1961). Atlas of the world commodities. Production, trade, and consumption an economic-geographical survey. Gyldendalske Boghandel.
Cita Chicago Style (17a ed.)Jonasson, Olof. Atlas of the World Commodities. Production, Trade, and Consumption an Economic-geographical Survey. Gyldendalske Boghandel, 1961.
Cita MLA (8a ed.)Jonasson, Olof. Atlas of the World Commodities. Production, Trade, and Consumption an Economic-geographical Survey. Gyldendalske Boghandel, 1961.
Precaución: Estas citas no son 100% exactas.