2
Published [1978]

Report Number(s): APA 3284

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3
Published [1977]

Report Number(s): APA 3284 (draft)

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4
Published [1981]

Report Number(s): APA 334 APA 1221 SUS 14

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5
Published [1982]

Report Number(s): APA 27 APA 329 APA 1220

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