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|c 39225
|d 39225
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082 |
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|2 21st ed
|a 333.7317
|b SOI
|
110 |
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|a soil and water conservation and land utilization
|
111 |
|
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|a Seminar on monitoring systems for environmental control
|c Gaborone, botswana :
|d November 3-7, 1986
|
245 |
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|a Southern African development coordination conference
|
300 |
|
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|a 252p
|
500 |
|
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|a Land utilization programme
|
653 |
|
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|a land utilization
|
653 |
|
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|a environmental monitoring
|
653 |
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|a water conservation
|
653 |
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|a soil conservation
|
942 |
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|2 ddc
|c EN
|