Clyde Tombaugh (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Clyde Tombaugh" in Simple English language version.

refsWebsite

Global rank Simple English rank

6^th place

4^th place

1achievement.org

1,925^th place

2,012^th place

achievement.org

"Clyde Tombaugh: A Man of Universal Wonder". American Academy of Achievement. September 9, 2006. Retrieved April 25, 2010.

archive.org

Tombaugh, Clyde; Patrick Moore (1980). Out of the Darkness: The Planet Pluto. Harrisburg, Pennsylvania: Stackpole Books. pp. 17. ISBN 978-0-8117-1163-0. "I was born on a farm near Streator, Illinois, on 4 February 1906."