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21
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22
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23
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24
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25
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26
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27Published 1972“...QC 717.6 .C748...”
Conference Proceeding Book -
28
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29Published 1991“...QC 806.6 .N813...”
Book -
30
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31Published 1971“...QC 808.5 .N279...”
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32
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33
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34
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35
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36Published 1963“...QC 801 .G827...”
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37
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38
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39
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40