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Published [1981]

Report Number(s): APA 1364

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by Plummer, James R.,
Published 1982]

Report Number(s): APA 188

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Published 1982]

Report Number(s): APA 263

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Published [1982]

Report Number(s): APA 3313

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Published [1983]

Report Number(s): APA 485

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Published 1981]

Report Number(s): APA 111

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