Journal Article Report on Ammoniacal and Urea Nitrogen Get access W B Griem W B Griem Associate Referee State Department of Agriculture, Madison, Wis Search for other works by this author on: Oxford Academic Google Scholar Journal of Association of Official Agricultural Chemists, Volume 25, Issue 4, 1 November 1942, Pages 874–876, https://doi.org/10.1093/jaoac/25.4.874 Published: 14 February 2020
Alfred T. PerkinsJ F MerrillS N Rogers