APA引文

Pflaum, H. G., & Heidelberg, M. G. (2002). German silent movie classics. Germany: [s.n.].

Παραπομπή Chicago Style

Pflaum, Hans Gunther, και Malcolm Green Heidelberg. German Silent Movie Classics. Germany: [s.n.], 2002.

MLA引文

Pflaum, Hans Gunther, και Malcolm Green Heidelberg. German Silent Movie Classics. Germany: [s.n.], 2002.

警告：这些引文格式不一定是100％准确.