@book{21804,
	author = {Von / Aufderstrabe, Hartmut / Bock, Heiko / Gerdes, Mechthild / Muller, Jutta / Muller, Helmut},
	title = {Themen 1 : Kursbuch},
	publisher = {German Book Centre},
	address = {New Delhi},
	edition = {-}
}