1
Published [1980?]
...APA 1323...

Report Number(s): APA 1323 SUS 336

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2
Published [1985]
...APA 2921...

Report Number(s): APA 2921 SUS 564

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3
Published [1985]
...APA 2921 (draft)...

Report Number(s): APA 2921 (draft) SUS 513

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