TY  - BOOK
AU  - à¤¤à¥à¤°à¤¿à¤ªà¤¾à¤ à¥, à¤®à¤§à¥à¤¸à¥à¤¦à¤¨ 
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SN  - 8190218808
U1  - 363.7 
PY  - 2008///
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KW  - à¤ªà¥à¤°à¤¦à¥à¤·à¤£ -- à¤à¥à¤¯à¤¾ à¤à¤° à¤à¥à¤¸à¥?
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KW  - Pollution - what and how?
KW  - Environmental education
ER  -