1
Published [1981]
...APA 346...

Report Number(s): APA 346 APA 347 APA 349 APA 350 SUS 104

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2
Published [1983]
...APA 590 (draft)...

Report Number(s): APA 590 (draft) SUS 132

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3
Published 1983.
...APA 590...

Report Number(s): APA 590 RTS 15 RTS 15i SUS 181

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4
Published [1985]
...APA 2836 (draft)...

Report Number(s): APA 2836 (draft) RTS 30 (draft) SUS 496 SUS 507

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