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21
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23
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24Published 1974“...HQ 1457 .W872...”
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27
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28
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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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36Published 1985“...HV 9960 .C2 .C929...”
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39
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40Published 1987“...HV 640.4 .C2 .U68...”
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