21
Published [1983]
...Ballard, Warren B....

Report Number(s): APA 413

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22
Published [1984]
...Ballard, Warren B....

Report Number(s): APA 2324

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23
Published 1978.
...Ballard, Warren B....

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

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24
Published [1982]
...Ballard, Warren B....

Report Number(s): APA 412 APA 1333 SUS 114

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25
Published [1982]
...Ballard, Warren B....

Report Number(s): APA 408 APA 1331 SUS 112

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27
Published [1982]
...Ballard, Warren B....

Report Number(s): APA 416 APA 1335 SUS 116 SUS 117

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28
Published [1983]
...Ballard, Warren B....

Report Number(s): APA 409

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29
Published [1984]
...Ballard, Warren B....

Report Number(s): APA 2322

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30
Published [1984]
...Ballard, Warren B....

Report Number(s): APA 2320

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31
32
Published [1981]
...Ballard, Warren B....

Report Number(s): APA 233 APA 391 SUS 54

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