S.N. 419,800 (Improved Grid Geometry), Box: 88, Folder: F215. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections.
Cite Item Description
S.N. 419,800 (Improved Grid Geometry), Box: 88, Folder: F215. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/91080 Accessed July 26, 2024.
