1
by Didrickson, Jack C.,
Published [1977]
...APA 950...

Report Number(s): APA 950

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2
by Ballard, Warren B.
Published 1979.
...APA 3137...

Report Number(s): APA 3137

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3
by Ballard, Warren B.
Published [1981]
...APA 2691...

Report Number(s): APA 2691

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