A programming-simulation study of constraints affecting the long-run income-earning ability of traditional dryland farming systems in Northern Nigeria /
| Main Author: | |
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| Format: | Thesis Microform Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1980.
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| Subjects: |
Evans: Microforms (3rd floor)
| Call Number: |
film B 2379 |
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