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  <oai_dc:dc>
    <dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">Experimental and quazi-experimental designs for research</dc:title>
    <dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">
   Campbell, Donald T
  </dc:creator>
    <dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">
   Stanley, Julian C
  </dc:creator>
    <dc:type xmlns:dc="http://purl.org/dc/elements/1.1/">text</dc:type>
    <dc:publisher xmlns:dc="http://purl.org/dc/elements/1.1/">Boston Houghton Mifflin</dc:publisher>
    <dc:date xmlns:dc="http://purl.org/dc/elements/1.1/">1963</dc:date>
    <dc:language xmlns:dc="http://purl.org/dc/elements/1.1/">ind</dc:language>
    <dc:subject xmlns:dc="http://purl.org/dc/elements/1.1/">Mathematics</dc:subject>
    <dc:identifier xmlns:dc="http://purl.org/dc/elements/1.1/">URN:ISBN:0-395-30787-2</dc:identifier>
  </oai_dc:dc>
</oai_dc:dcCollection>