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Britain fights for cleaner skies

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      <subfield code="a">Britain fights for cleaner skies</subfield>
      <subfield code="c">by Robert Engelman</subfield>
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      <subfield code="a">Air without borders -- Recession takes its toll -- A history of air problems -- Action on air -- "Best available" controls -- Time for a National Energy Policy -- London meets air guidelines</subfield>
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      <subfield code="g">nº 2, February 1993 ; p. 40-43</subfield>
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