APA引文

Langdon, A. D. (1972). Modern German literature. Ungar.

芝加哥风格引文

Langdon, Agnes Domandi. Modern German Literature. New York: Ungar, 1972.

MLA引文

Langdon, Agnes Domandi. Modern German Literature. Ungar, 1972.

警告：这些引文格式不一定是100％准确.