Solar Water Heaters (M. Telkes), Box: 26, Folder: F42. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections.
Cite Item Description
Solar Water Heaters (M. Telkes), Box: 26, Folder: F42. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/89380 Accessed July 26, 2024.
