00902cam a2200253 a 4500 1165490 NUST - PNEC 20170116181137.0 960604s1997 paua b 001 0 eng 96060785 1566764394 DLC LIBRARY DLC TD475 .S66 1997 628.101579 SPE Spellman, Frank R. Microbiology for water/wastewater operators / Frank R. Spellman. Lancaster, Pa. : Technomic Pub., c1997. xiii, 193 p. : ill. ; 23 cm. Includes bibliographical references (p. 185-188) and index. Water Microbiology. 7 cbc orignew 2 opcn 19 y-gencatlg ddc BK 70284 70284 0 0 ddc 0 0 PNEC PNEC WING-B 0000-00-00 0 628.101579 SPE PNECLIB-026441 2015-10-07 0000-00-00 BK