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	1.	Air pollution / A K Tripathi. by Tripathi, A K Material type: Text; Format: print ; Literary form: Not fiction Original language: English Publication details: New Delhi : Ashish, 1993 Availability: Items available for loan: National Library of Bangladesh (1)Call number: 363.7392 TRI 1993. Place hold Add to cart (remove)
	2.	Water pollution / A.K. Tripathi and S.N. Pandey. by Tripathi, A. K Pandey, S. N, -1943 Material type: Text; Format: print ; Literary form: Not fiction Original language: English Publication details: New Delhi : Ashish Pub. House, 1990 Availability: Items available for loan: National Library of Bangladesh (1)Call number: 589.35222 TRI 1990.. Place hold Add to cart (remove)

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