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2
-
Night-soil composting / [by Hillel I. Shuval, Charles G. Gunnerson, and DeAnne S. Julius].
- World bank. Transportation, water, and telecommunications department,
- 1981.
- Washington, DC :
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Energy resources in Southern Africa: a select bibliography / Ann Cavan.
- 86
- African bibliographic center,
- 1981.
- Washington, DC :