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|a 81-85613-31-1
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|a 574.51 DUB
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| 100 |
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|a Dubey, R M
|9 131700
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| 245 |
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|a Human ecology and environmental education Vol 1.
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| 260 |
|
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|a Allahabad, Chugh Publications
|
| 260 |
|
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|c 1992
|
| 490 |
|
|
|a 1
|
| 650 |
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|a Environmental education
|9 131701
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| 650 |
|
|
|a Fundamentals of ecology
|9 131702
|
| 650 |
|
|
|a Green house effect
|9 131703
|
| 650 |
|
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|a Human ecology
|9 131704
|
| 650 |
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|a Sustainable development
|9 131705
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| 942 |
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|c BK
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| 999 |
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|c 176191
|d 176187
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| 952 |
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