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  <titleInfo>
    <title>Determination of the rate of biodegradation in some polluted tropical waters and in some types of liquid wastes common in Puerto Rico</title>
  </titleInfo>
  <name type="personal">
    <namePart>Valle, Luis A. del</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="corporate">
    <namePart>University of Puerto Rico Mayaguez Campus</namePart>
    <namePart>Water Resources Research Institute.</namePart>
  </name>
  <name type="corporate">
    <namePart>United States</namePart>
    <namePart>Office of Water Resources Research.</namePart>
  </name>
  <typeOfResource>text</typeOfResource>
  <genre authority="marc">bibliography</genre>
  <originInfo>
    <place>
      <placeTerm type="code" authority="marccountry">pr</placeTerm>
    </place>
    <place>
      <placeTerm type="text">Mayaguez, P.R</placeTerm>
    </place>
    <publisher>Water Resources Research Institute, School of Engineering</publisher>
    <dateIssued>[1972]</dateIssued>
    <dateIssued encoding="marc">1972</dateIssued>
    <issuance>monographic</issuance>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
  </language>
  <physicalDescription>
    <form authority="marcform">print</form>
    <extent>80 leaves ill. 28 cm.</extent>
  </physicalDescription>
  <note type="statement of responsibility">by Luis A. del Valle.</note>
  <note>"Completion report, A-023-PR"--Cover.</note>
  <note>Partially funded by the Office of Water Resources Research.</note>
  <note>"September, 1972."</note>
  <subject>
    <geographicCode authority="marcgac">nwpr---</geographicCode>
  </subject>
  <subject authority="lcsh">
    <topic>Water supply</topic>
    <geographic>Puerto Rico</geographic>
  </subject>
  <subject authority="lcsh">
    <topic>Biodegradation</topic>
  </subject>
  <subject authority="lcsh">
    <topic>Water</topic>
    <topic>Pollution</topic>
    <geographic>Puerto Rico</geographic>
  </subject>
  <subject authority="lcsh">
    <topic>Water</topic>
    <topic>Purification</topic>
    <topic>Biological treatment</topic>
  </subject>
  <recordInfo>
    <recordContentSource authority="marcorg">UDI</recordContentSource>
    <recordCreationDate encoding="marc">850207</recordCreationDate>
    <recordChangeDate encoding="iso8601">20160527191958.0</recordChangeDate>
    <recordIdentifier source="BIBL">63639</recordIdentifier>
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