21
Published [1980]
...APA 1397...

Report Number(s): APA 1397 SUS 338

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22
Published [1984]
...APA 2518...

Report Number(s): APA 2518 SUS 445

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23
Published [1985]
...APA 3424...

Report Number(s): APA 3424 SUS 567

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24
Published [1982]
...APA 6...

Report Number(s): APA 6 SUS 44

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25
Published [1982]
...APA 527...

Report Number(s): APA 527 SUS 373

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27
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by McIlroy, Carl William,
Published [1976]
...APA 1611 (in part)...

Report Number(s): APA 1611 (in part) RTS 2 (in part) SUS 10001

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30
Published 1978.
...APA 1613...

Report Number(s): APA 1613 RTS 4 SUS 35 SUS 10004 SUS 10005

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31
Published [1985]

Report Number(s): SUS 86

Chapter 2.