Health - House Subcommittee on Government Operations, "Phosphates in Detergents and the Eutrophication of America's Waters", 1969, Box: 1, Folder: 46. Robert Blackwell Docking papers, RH MS 167. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/503185 Accessed November 23, 2024.