"Based upon the author's doctoral dissertation, which was completed at the University of Illinois in 1958."
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/645422362 |
| Date | January 1961 |
| Creators | Erickson, E. Walfred |
| Publisher | Chicago, American Library Association, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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