De Amicis, Edmondo, 1846-1908. Cuore di Edmondo de Amicis / [electronic resource] / edited with direct-method exercises, notes, and vocabulary, by Olin H. Moore and D.P. Rotunda.. — Boston ; London : : D.C. Heath and Company,, c1925.. — x, 224 p. : : port. ; 17 cm. — (Heath's modern language series.).