@misc{Smith_David_Eugene_(1860-1944)_Arithmetic.,
 author={Smith, David Eugene (1860-1944) and Wentworth, George Albert (1835-1906)},
 howpublished={online},
 publisher={Ginn and Company},
 language={eng},
 title={Arithmetic. Book 3},
 type={książka},
 keywords={arytmetyka},
}