169. Book Review of Albert Van Helden's Measuring the Universe, Martin Harwit, Sky and Telescope, November 1985, pp. 443-444, November 1985,

169. Book Review of Albert Van Helden's Measuring the Universe, Martin Harwit, Sky and Telescope, November 1985, pp. 443-444, November 1985,, Box: 21. Martin Harwit papers, 14-7-2402. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/174520 Accessed January 29, 2026.