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  <titleInfo>
    <nonSort>A </nonSort>
    <title>simplified presentation of Einstein's unified field equations</title>
  </titleInfo>
  <name type="personal">
    <namePart>Levi-Civita, Tullio</namePart>
    <namePart type="date">1873-1941</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Dougall, John</namePart>
    <namePart type="date">1867-1960</namePart>
    <role>
      <roleTerm type="text">tr.</roleTerm>
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    <place>
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    <publisher>Blackie</publisher>
    <dateIssued>1929</dateIssued>
    <issuance>monographic</issuance>
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  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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    <extent>22 p. 22 cm.</extent>
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  <note type="statement of responsibility">by Tullio Levi-Civita. Authorized translation by John Dougall.</note>
  <subject authority="lcsh">
    <name type="personal">
      <namePart>Einstein, Albert</namePart>
      <namePart type="date">1879-1955</namePart>
    </name>
  </subject>
  <subject authority="lcsh">
    <topic>Gravitation</topic>
  </subject>
  <subject authority="lcsh">
    <topic>Electromagnetism</topic>
  </subject>
  <classification authority="lcc">QC6.E57 L4</classification>
  <classification authority="ddc" edition="19">512.1 LES</classification>
  <identifier type="lccn">29030455</identifier>
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