The author's doctoral dissertation, University of Minnesota, 1913, but not published as a thesis. / "March 1915." Includes bibliographical references and index.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/566261551 |
| Date | January 1915 |
| Creators | Orfield, Matthias Nordberg, |
| Publisher | Minneapolis : Bulletin of the University of Minnesota, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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