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21
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22Published 1979“...HN 385.5 .S678...”
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23
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24
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25Published 1986“...HN 65 .A5121...”
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26
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27
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28
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29
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30Published 1981“...HN 29.5 .H236 1981...”
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31
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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 1980“...HN 400 .M6 .P451...”
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37
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38
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39
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40