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21Published 1978“...HM 791 .U58 1977...”
Conference Proceeding Book -
22
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23
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24
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25Published 1980“...HV 553 .E92...”
Book -
26
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27
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28
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29Published 1982“...HQ 710 .S471...”
Conference Proceeding Book -
30
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31
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32Published 1978“...HM 1166 .S933 1978...”
Book -
33
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34Published 1980“...HV 5825 .E84...”
Government Document Conference Proceeding Book -
35Published 1981“...HQ 755.85 .P228...”
Book -
36Published 1980“...HD 9502 .N5 .N532 gu...”
Book -
37
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38
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39Published 1973“...HC 79 .E5 .S933...”
Conference Proceeding Book -
40