01199cam a2200253 a 4500 566490 BD-DhUL 20170420172925.0 890817s1990 dcua b 000 0 eng 89062948 0309040868 DLC BD-DhUL BD-DhUL TD897 .N26 1990 604.7 20 NAT National Research Council (U.S.). Committee to Evaluate Mass Balance Information for Facilities Handling Toxic Substances. Tracking toxic substances at industrial facilities : engineering mass balance versus materials accounting / Committee to Evaluate Mass Balance Information for Facilities Handling Toxic Substances, Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources. Washington, D.C. : National Academy Press, 1990. x, 188 p. : ill. ; 28 cm. Includes bibliographical references (p. 185-188). Factory and trade waste Management. 7 cbc orignew 2 opcn 19 y-gencatlg ddc BK by45 to be00 08-17-90; be40/be20 to SCD 08-29-90; fg10 08-31-90; fm23 09-28-90 190331 190331 0 0 ddc 0 604_700000000000000_NAT 1 REF 326799 DUL DUL ASC 2017-04-20 Gift 604.7 NAT 368731 2017-04-20 2017-04-20 BK