Francis Guthrie (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Francis Guthrie" in English language version.

refsWebsite

Global rank English rank

451^st place

277^th place

3,075^th place

3,035^th place

ams.org

Appel, Kenneth; Haken, Wolfgang (1989). Every Planar Map is Four Colorable. Contemporary Mathematics. Vol. 98. American Mathematical Society. ISBN 978-0-8218-5103-6.

ipni.org

International Plant Names Index. Guthrie.