00564nam a22001457a 4500 230529b |||||||| |||| 00| 0 eng d National Science Library National Science Library 577.17 L7 Procedures used at the national bureau of standards to determine selected trace elements in biological and botanical materials / U. S. Department of Commerce Washington, D. C.: U. S. Department of Commerce, 1977 x, 287p. Science Mavrodineanu, R (Ed.) udc BK 36219 36219 0 0 udc 0 57717_L7 0 55095 NSL NSL GF/Rk-10/C-15/R-5 2004-07-31 0 577.17 L7 193557 2023-05-29 00:00:00 2004-07-31 BK