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Published 1990]

Report Number(s): APA 4166

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by Ballard, Warren B.,
Published 1978.

Report Number(s): APA 917

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77
by Ballard, Warren B.
Published [1980]

Report Number(s): APA 524 APA 947

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78
79
by Whitman, Jackson S.
Published [1983]

Report Number(s): APA 707

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