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21
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22
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23Published 1961Subjects: “...Geology Arctic regions Congresses....”
Conference Proceeding Book -
24Published 1980Subjects: “...Ecology Arctic regions....”
Book -
25
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26
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27Published 1955“...Arctic....”
Book -
28Published 1962Subjects: “...Anthropology Arctic regions Periodicals....”
Journal -
29
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30
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31
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32
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33
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34
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35Published 1967Table of Contents: “...The Arctic; its discovery and past development, by I. L. Wiggins.--Permafrost and its effect...”
Conference Proceeding Book -
36
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37Published 1973Subjects: “...Geology Arctic regions Congresses....”
Conference Proceeding Book -
38
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39
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40