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- Zambia Geographical Association occasional study ; no. 9 .
- Publication of the Zambian Environmental Trends and Issues Project ; no. 1 .
- Zambian Environmental Trends and Issues Project. Publication of the Zambian Environmental Trends and Issues Project ; Zambian Environmental Trends and Issues Project. Publication of the Zambian Environmental Trends and Issues Project ; no. 1. .
"This publication also appears as publication no. 1 of the Zambian Environmental Trends and Issues Project."