157. The Course Toward Understanding in Astronomy: In and Out of the Sand Traps, Martin Harwit, National Air and Space Museum Research Report 1984, published for the National Air and Space Museum by the Smithsonian Institution, Washington, D.C.,, May 1984.

157. The Course Toward Understanding in Astronomy: In and Out of the Sand Traps, Martin Harwit, National Air and Space Museum Research Report 1984, published for the National Air and Space Museum by the Smithsonian Institution, Washington, D.C.,, May 1984., Box: 21, Folder: 37. Martin Harwit papers, 14-7-2402. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/174508 Accessed January 29, 2026.