00655cam a2200217 a 4500 3700204 BD-DhUL 20170418145409.0 850514s1980 nyua b i000 0 eng d VIT eng BD-DhUL BD-DhUL BD-DhUL d------ 671.9 19 UNU United Nations Utilization of non-ferrous scrap metal / United Nations New York : United Nations, 1969. 81p. : ill., graphs ; 25cm. Energy resources development series ; no. 21 Biogas Developing countries. United Nations. ddc REF 185020 185020 0 0 ddc 0 671_900000000000000_UNU 1 REF 321214 DUL DUL UNC 2017-04-18 Gift 671.9 UNU D5283 2017-04-18 2017-04-18 REF