Information sources on the glass industry. - New York : United Nations (UN) , 1975 - xxi, 64p. ; 21 cm. - UNIDO guides to information sources ; no. 16 [Document] - United Nations ; ID/138/UNIDO/LIB/SER.D/16 . Bibliography: p. 62-64. Subjects--Topical Terms: Glass trade--DirectoriesGlass manufacture--Directories Gov. Doc. Class. No.: UN IDO GIS-16