Lagrega, Michael D. creator text New York McGraw-Hill Companies 1994 International Ed. monographic 1184 p. ; International Edition. waste management 363.72 LAG 0071134549 (paperback) 9780071134545 (paperback) http://www.amazon.com/exec/obidos/ASIN/0071134549/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/0071134549/chopaconline-20