1
Published 1971.

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

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2
by Darnell, Rezneat M.
Published 1976.

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

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3
Published [1977]

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

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