Francis Guthrie: Versiyalar orasidagi farq
$2, $3 dagi (joriy) koʻrinishi
Francis Guthrie (1831-yil 22-yanvarda Londonda tug‘ilgan; 1899-yil 19-oktabrda Claremontda vafot etgan) — Keyp koloniyasidagi matematik va botanik.
Manbalar
[tahrir | manbasini tahrirlash]- Gunn, Mary; Codd, L. E.. Botanical exploration of southern Africa. Cape Town: A. A. Balkema, 1981. ISBN 9780869611296.
- Maritz, Pieter; Mouton, Sonja (2012). "Francis Guthrie: A Colourful Life". The Mathematical Intelligencer 34 (3): 67–75. doi:10.1007/s00283-012-9307-y. ISSN 0343-6993.* O'Connor, J J; Robertson, E F „The four colour theorem“ (1996-yil 1-sentyabr).
Tashqi havolalar
[tahrir | manbasini tahrirlash]- Biography of Francis Guthrie at the S2A3 Biographical Database of Southern African Science
- Royal Society of South Africa