1
Published [1983]
Contents: '; ... ; General characteristics ; Maps ; Cross-sectional data....

Report Number(s): APA 4099

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2
3
Published [1980]

Report Number(s): APA 331 APA 1253 APA 1433 SUS 39

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4
Published [1982]

Report Number(s): APA 1255 APA 1256 APA 1434 SUS 40

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