Higuchi and Bodin, "Alkaloids and Other Basic Nitrogenous Compounds (Chapter VIII),", n.d

Higuchi and Bodin, "Alkaloids and Other Basic Nitrogenous Compounds (Chapter VIII),", n.d, Box: 10, Folder: 37. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124461 Accessed December 25, 2025.