161
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170
by Trigg, William M.
Published 1971.

Report Number(s): APA 924

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171
by Buskirk, Steven.
Published 1983.

Report Number(s): APA 896 APA 2750

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172
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by Calef, George W.
Published 1981.

Report Number(s): APA 3107

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180
Published [1982]

Report Number(s): APA 6 SUS 44

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