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Perpetual motion

  • Identifier: ark:/99152/b4f47h096
  • Permalink: n2t.net/ark:/99152/b4f47h096
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Helping Interdisciplinary Vocabulary Engineering
Library of Congress. Subject headings used in the dictionary catalogues of the Library of Congress, 3 vols. Vols. 1-2.
Washington: G.P.O., Library Branch, 1910-1914.

Library of Congress. Subject headings used in the dictionary catalogues of the Library of Congress, 5 vols. Vols. 4-5.
Washington: G.P.O., Library Branch, 1910-1914.
  • Vol. 4 (Q-R), https://hdl.handle.net/2027/mdp.39015014520715
  • Vol. 5 (S-Z), https://hdl.handle.net/2027/mdp.39015014520731