Berens, Hermann, 1826-1880 Pflege der linken hand the training of the left hand - L'Ecole de la main gauche / [music scores] : Hermann Berens. - Leipzig : C. F. Peters, s. a. - 30 p. : music scores ; 29 cm. - 786.2 (NLA) . Subjects--Topical Terms: instrumental music Universal Decimal Class. No.: 786.2 (NLA)