Conference on the Development of Petrochemical Industries in Developing Countries
United Nations Interregional
Conference on the Development of Petrochemical Industries in Developing Countries - Teheran 1964 - 2v
PETROLEUM PRODUCTS -- CONGRESSES
PETROLEUM PRODUCTS -- CONGRESSES
665.538 U-4S
Conference on the Development of Petrochemical Industries in Developing Countries - Teheran 1964 - 2v
PETROLEUM PRODUCTS -- CONGRESSES
PETROLEUM PRODUCTS -- CONGRESSES
665.538 U-4S