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| Utgitt
| Auburn, Alabama : Auburn University , 1972
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| Omfang
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| Opplysninger
| This is an authorized facsimile and was produced by microfilm-xerography in 1977 by University Microfilms International. Ann Arbor, Michigan, U.S.A.. London, England.. - A dissertation submitted to the graduate faculty of Auburn University i partial fulfillment of the requrements for the degree of Doctor of Philosophy
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| Emner
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