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2
Published [1983]

Report Number(s): APA 2446

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4
Published [1984]

Report Number(s): APA 457

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Published [1980]

Report Number(s): APA 1719 APA 2286 APA 2497

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6
Published [1982]

Report Number(s): APA 1187 SUS 87

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8
Published [1981]

Report Number(s): APA 1586 APA 1587

Vol. 4.
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by Ballard, Warren B.
Published 1979.

Report Number(s): APA 3137

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12
by Ballard, Warren B.
Published [1981]

Report Number(s): APA 2691

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