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21Published 1989“...Opposing viewpoints series (Unnumbered)...”
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22Published 1986“...Opposing viewpoints series (Unnumbered)...”
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23Published 1985“...Opposing viewpoints series (Unnumbered)...”
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24Published 1989“...Opposing viewpoints series (Unnumbered)...”
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25Published 1990“...Opposing viewpoints series (Unnumbered)...”
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26Published 1990“...Opposing viewpoints series (Unnumbered)...”
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27Published 1989“...Opposing viewpoints series (Unnumbered)...”
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28
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29Published 1987“...Opposing viewpoints series (Unnumbered)...”
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30Published 1987“...Opposing viewpoints series (Unnumbered)...”
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31Published 1989“...Opposing viewpoints series (Unnumbered)...”
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32Published 1986“...Opposing viewpoints series (Unnumbered)...”
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33Published 1988“...Opposing viewpoints series (Unnumbered)...”
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34Published 1984“...Opposing viewpoints series (Unnumbered)...”
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35Published 1987“...Opposing viewpoints series (Unnumbered)...”
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36Published 1989“...Opposing viewpoints series (Unnumbered)...”
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37Published 1985“...Opposing viewpoints series (Unnumbered)...”
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38Published 1989“...Opposing viewpoints series (Unnumbered)...”
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39
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40