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Conversion factors and weights and measures for agricultural commodities and their products
(1965)
Industrial technology : promotion of standardization in developing countries ; [report
(1966)
The promotion of industrial standardization of developing countries : report of the United Nations Inter-regional Seminar
Außenwirtschaftsrecht der DDR
Kemper, Manfred, (1985)
Aussenwirtschaftsrecht der DDR
Kemper, Manfred, (1987)