5 1 50 Kursbuch Additional Author Aufderstrabe, Hartmut Additional Author mixed material 9798060113 Jakarta Katalis 1991 Additional Author Aufderstrabe, Hartmut Additional Author mixed material 9798060415 Jakarta Katalis 2005 Kursbuch Additional Author Aufderstrabe, Hartmut Additional Author mixed material 9798060296 Jakarta Katalis 1990 Kursbuch 1 Additional Author Aufderstrabe, Hartmut Additional Author mixed material 9798060342 Jakarta Katalis 2005 Arbeitsbuch Ausland Additional Author Aufderstrabe, Hartmut Additional Author mixed material 9798060180 Jakarta Katalis 1989