2261
Published 1985]

Report Number(s): APA 2910

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2262
2265
2266
2267
2268
2269
by Butera, Bob,
Published [1982]

Report Number(s): APA 560

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2270
by Schallock, Eldor W.
Published 1974.

Report Number(s): EPA-660/3-74-008 APA 1922

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2272
2273
2274
2275
2276
2277
Published [1984]

Report Number(s): APA 4095

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2278
by Ashton, Bill,
Published [1984]

Report Number(s): APA 2506

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2279
by Ashton, Bill,
Published [1985]

Report Number(s): APA 2719 SUS 517

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2280
Published [1984]

Report Number(s): SUS 261

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