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1
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2Published 1976“...HQ 1865.5 .W872 s...”
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3Published 1974“...HN 867 .N277...”
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4Published 1966“...HN 932 .S471...”
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5Published 1969“...HC 622 .N277 s...”
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6Published 1995“...HN 930.5 .A8 .N53217...”
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7Published 1996“...HQ 1154 .B422 1996...”
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8Published 1997“...HD 7105.35 .N5 .R438...”
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9