George H. Cooper: Полный список книг

George H. Cooper: список всех книг (2)

Twentieth Century System of Notation: Calculations Made Easy. The Octimal System of Notation and Num - George H. Cooper

Twentieth Century System of Notation: Calculations Made Easy. The Octimal System of Notation and Num

George H. Cooper
Elementary arithmetic of the octimal notation - George H. 1859- Cooper

Elementary arithmetic of the octimal notation

George H. 1859- Cooper