German
http://www.routledge.com/textbooks/0415253462/
http://highered.mcgraw-hill.com/sites/0072560770/student_view0/index.html
http://www.mhhe.com/socscience/german/fokus_bg1/
http://highered.mcgraw-hill.com/sites/0073535338/student_view0/index.html
http://highered.mcgraw-hill.com/sites/007353532x/student_view0/index.html
http://highered.mcgraw-hill.com/sites/0073012521/student_view0/index.html