Thesis (Ph. D.)--Columbia University, 1943. / Without thesis note. Bibliographical references included in "Footnotes" (p. 123-135).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/571876915 |
| Date | January 1943 |
| Creators | Koch, Albert Ralph. |
| Publisher | New York, National bureau of economic research, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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