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25
Published [1981]

Report Number(s): APA 3278

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26
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29
Published [1977]

Report Number(s): APA 3284 (draft)

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30
Published [1978]

Report Number(s): APA 3284

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34
by Ashton, Bill,
Published [1984]

Report Number(s): APA 2506

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35
Published [1984]

Report Number(s): APA 1718 SUS 346

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38
Published [1982]

Report Number(s): APA 102 APA 1383

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