100 great problems of elementary mathematics their history and solution. - Dèorrie, Heinrich 1873- (New York Dover Publications, 1965)
"A new translation of the unabridged text of the fifth edition ... published by the Physica-Verlag, Wèurzburg, Germany, in 1958 under the title Triumph der Mathematik: Hundert berèuhmte Probleme aus zwei Jahrtausenden mathematischer Kultur."
Keywords: Mathematics -- Problems, exercises, etc; Mathematical recreations