Webb, H. E. (1919). CERTAIN UNDEFINED ELEMENTS AND TACIT ASSUMPTIONS IN THE FIRST BOOK OF EUCLID'S ELEMENTS. The Mathematics teacher, 12(2), 41-60. https://doi.org/10.5951/MT.12.2.0041
Chicago Style (17th ed.) CitationWebb, Harrison E. "CERTAIN UNDEFINED ELEMENTS AND TACIT ASSUMPTIONS IN THE FIRST BOOK OF EUCLID'S ELEMENTS." The Mathematics Teacher 12, no. 2 (1919): 41-60. https://doi.org/10.5951/MT.12.2.0041.
MLA (9th ed.) CitationWebb, Harrison E. "CERTAIN UNDEFINED ELEMENTS AND TACIT ASSUMPTIONS IN THE FIRST BOOK OF EUCLID'S ELEMENTS." The Mathematics Teacher, vol. 12, no. 2, 1919, pp. 41-60, https://doi.org/10.5951/MT.12.2.0041.
Warning: These citations may not always be 100% accurate.