00400nam a22001097a 4500008004100000040005500041080001400096245008200110260004300192650002400235700003100259230221b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a628.5bL7  aMethods and standards for environmental measurementc/ Department of Commerce  aUS:   bDepartment of Commerce, c1977  aInformation science  aKirchhoff, William H (Ed.)