1
Published [1982?]

Report Number(s): APA 3224

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2
Published [1980]

Report Number(s): APA 1719 APA 2286 APA 2497

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3
4
Published [1980]

Report Number(s): APA 1301 SUS 330

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8
11
13
Published [1982]

Report Number(s): APA 302 APA 1303 SUS 74

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14
Published 1978]

Report Number(s): APA 4164

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15
17
18
Published [1985]

Report Number(s): APA 2917

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19
Published [1985]

Report Number(s): APA 2842

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20
Published [1984]

Report Number(s): APA 1767 APA 1892

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