1
Published [1985]

Report Number(s): APA 2921 (draft) SUS 513

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2
4
5
6
10
12
13
Published [1981]

Report Number(s): APA 401 SUS 54

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15
18
Published [1984]

Report Number(s): APA 2466 SUS 422

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20
by Ryan, P. M.,
Published 1980.

Report Number(s): SUS 109

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