Prem,Boris. Deutsch 9./10. klasse Aufsatz :Erörterung / [Book :] Boris Prem. - München : Mentor verlag , 2001. - 69P : ill (some col) ; 22 cm. All age. ISBN: 3580638068 Subjects--Topical Terms: German language --study and teaching. Dewey Class. No.: 430.7