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1Published 1988“...Westview Press,...”
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6Published 1977“...Westview Press,...”
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9Published 1984“...Westview Press,...”
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10Published 1986“...Westview Press,...”
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15Published 1988“...Westview Press,...”
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18Published 1989“...Westview Press,...”
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20Published 1989“...Westview Press,...”
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