Merzbach, U. C. 1., & Scheutz, G. 1. (1977). Georg Scheutz and the first printing calculator. Washington: Smithsonian Institution Press.
Chicago Style CitationMerzbach, Uta C. 1933-, and George 1785-1873 Scheutz. Georg Scheutz and the First Printing Calculator. Washington: Smithsonian Institution Press, 1977.
MLA CitationMerzbach, Uta C. 1933-, and George 1785-1873 Scheutz. Georg Scheutz and the First Printing Calculator. Washington: Smithsonian Institution Press, 1977.
Warning: These citations may not always be 100% accurate.