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1Published 1983“...New Society Publishers,...”
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2Published 1986“...New Society Publishers,...”
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7Published 1994“...New Society Publishers,...”
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9Published 1988“...New Society Publishers,...”
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15Published 1990“...New Society Publishers,...”
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16Published 1992“...New Society Publishers,...”
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17Published 1992“...New Society Publishers,...”
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