1
Published [1983]

Report Number(s): APA 559 APA 667

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2
3
Published [1982]

Report Number(s): APA 421 APA 1321 SUS 55

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4
5
Published [1980?]

Report Number(s): APA 1320 SUS 335

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6
by Hettinger, Loren.
Published 1974.

Report Number(s): APA 529

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