00537nam a2200181 a 4500008004100000020002200041100001900063245008300082250001200165260005500177300003500232650001500267650002900282700001700311003000100328005001700329040000900346                                          a0751403806 (pbk.)1 aAlloway, B. J.10aChemical principles of environmental pollution /cB.J. Alloway and D.C. Ayres.  a2nd ed.  aLondon  :bBlackie Academic & Professional,c1997.  axvii, 395 p. :bill. ;c25 cm. 0aPollution. 0aEnvironmental chemistry.1 aAyres, D. C.20230123133807.0  cNUST