Droste, Ronald L. creator text New York J. Wiley 1997 monographic xiv, 800 p. : ill. ; 27 cm. Ronald L. Droste. 0 0 0 628_162000000000000_DRO MCE Sewage Purification Water Purification 628.162 DRO 0471124443 (cloth : alk. paper) http://www.loc.gov/catdir/toc/onix05/96015477.html http://www.loc.gov/catdir/description/wiley034/96015477.html http://www.loc.gov/catdir/toc/onix05/96015477.html http://www.loc.gov/catdir/description/wiley034/96015477.html