Rach, R. (1996). Easy German exercises: Practice for beginners. Passport Books.
Chicagoスタイル(17版)引用形式Rach, Ruth. Easy German Exercises: Practice for Beginners. Lincolnwood, Ill: Passport Books, 1996.
MLA(9版)引用形式Rach, Ruth. Easy German Exercises: Practice for Beginners. Passport Books, 1996.
警告: この引用は必ずしも正確ではありません.