Y.mido , M.satake M.s Sethi , S.A.Iqbaal  <br/><br/>
Chemicals in the Environment  

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 -  Discovery Publishing House   1995 
<br/><br/> The teaching of chemistry at the introductory stage becomes each day a more challenging task as the subject matter becomes more diverse and more complex  
<br/><br/><label>ISBN: </label>81-7141-267-X