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Published [1981]

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

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by Warner, George W.,
Published [1956]

Report Number(s): APA 1832 c

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by Wojcik, Frank J.,
Published 1954?]

Report Number(s): APA 1832 a

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by Barrett, Bruce M.
Published 1985.

Report Number(s): APA 2748 (draft) RTS 29 (draft) SUS 448

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