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1
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2
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3Published 1992Other AuthorsBook
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4Published 1996Other Authors “...Petts, Geoffrey E....”
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5
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6Published 1996Other Authors “...Petts, Geoffrey E....”
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7
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8Published 1990Other AuthorsBook
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9
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10
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11Published 1989Other Authors “...Petts, Geoffrey E....”
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12