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Publisher:
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Chapel Hill : Institute for Research in Social Science, University of North Carolina, ©1976. |
ISBN: |
0891430652 |
Phys. Desc.: |
x, 276 pages : illustrations ; 28 cm |
Digital Content: |
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Publisher:
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New York : Wiley, [1982] |
ISBN: |
0471099309 |
Phys. Desc.: |
xi, 292 pages : illustrations ; 24 cm |
Digital Content: |
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Publisher:
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Washington : U.S. Govt. Print. Off., 1979. |
Phys. Desc.: |
iii, 273 pages : illustrations ; 24 cm |
Digital Content: |
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