00563nam a22001937a 4500 230622b |||||||| |||| 00| 0 eng d 0253-5114 National Science Library National Science Library 628.1/.4+504 M6 Current practices in environmental science and engineering Delhi: International Book Traders, 1986 251p. Vol. 2 Science Toxicity testing Singh, Alam (Ed.) Sharma, U S (Ed.) udc BK 46246 46246 0 0 udc Vol. 2, 1986 0 62814504_M6 0 70184 NSL NSL GF/Rk-13/C-16/R-3 1987-10-16 0 628.1/.4+504 M6 168622 2023-06-22 00:00:00 1987-10-16 BK