Chemical industry .
United Nations, industrial development organisation.
Chemical industry . - New York United Nations 1969 - ix, 89p. - UNIDO monographs on industrial development, industrialization of developing countries : problems and prospects .
Chemical industries - UNIDO
Industrial economics
Chemical industry . - New York United Nations 1969 - ix, 89p. - UNIDO monographs on industrial development, industrialization of developing countries : problems and prospects .
Chemical industries - UNIDO
Industrial economics