APA引文

Gregor, M. (1971). PEN: Prosa Lyrik Essay. Tubingen.

Chicago Edition Citation

Gregor, Martin. PEN: Prosa Lyrik Essay. Horst Erdmann: Tubingen, 1971.

MLA引文

Gregor, Martin. PEN: Prosa Lyrik Essay. Tubingen, 1971.

警告：这些引文格式不一定是100％准确.