Newcomb, Ralph S.
Modern methods of teaching arithmetic / Ralph S. Newcomb ; introd. Ellwood P. Cubberley
Modern methods of teaching arithmetic / Ralph S. Newcomb ; introd. Ellwood P. Cubberley . - Boston : Houghton Mifflin, 1926 . - XV, 352 p. 20 cm . - (Riverside Textbooks in Education)
37.015.3
372.47
Modern methods of teaching arithmetic / Ralph S. Newcomb ; introd. Ellwood P. Cubberley . - Boston : Houghton Mifflin, 1926 . - XV, 352 p. 20 cm . - (Riverside Textbooks in Education)
37.015.3
372.47
