Klippel, F. (2007). Keep talking. Cambridge University Press.
Chicagoスタイル(17版)引用形式Klippel, Friederike. Keep Talking. Cambridge: Cambridge University Press, 2007.
MLA(9版)引用形式Klippel, Friederike. Keep Talking. Cambridge University Press, 2007.
警告: この引用は必ずしも正確ではありません.