00672nam a2200193 i 4500 1/9178 750703s1975 miua 00110 eng 0250400901 9500 DLC GR-PeUP 628.5'4 KR Krofchak, David. Science & engineering for pollution-free systems / by David Krofchak and J. Neil Stone. Ann Arbor, Mich. : Ann Arbor Science Publishers, [1975] 332 p. : ill. ; 24 cm. Includes index. Factory and trade waste Environmental aspects. Stone, Neil J. INST UNIPILB MAIN 20040709 628.5'4 KR 00108859 00108859 LOAN 0 1