1
Published 1971.

Report Number(s): APA 2075 PC(1)-B 3

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2
Published [1980]

Report Number(s): EPA-450/4-80-012 APA 2116

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4

Report Number(s): APA 2021

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5
6
by DeVries, Anne H.
Published [1981]

Report Number(s): APA 1633

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7
18
by Kozlowski, T. T. 1917-
Published 1974.

Report Number(s): APA 2459

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