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| Utgitt
| Boston : Houghton Mifflin , 1968
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| Omfang
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| Opplysninger
| Endel av bidragene er tidligere publisert i Dædalus 1967. - Includes bibliographical references.. - Papers, by contributors chosen by the editors, based on preparatory conferences held at the American Academy of Arts and Sciences, Boston.
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| Emner
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| Geografisk emneord
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