2
Published 1971.
...APA 2075...

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

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3
by Darnell, Rezneat M.
Published 1976.
...APA 3143...

Report Number(s): APA 3143 EPA-600/3-76-045

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4
Published [1977]
...APA 1813...

Report Number(s): EPA-600/3-77-042 APA 1813

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