APA引文

Gravil, R. (2007). Existentialism. Humanities-Ebooks.

Chicago Style (17th ed.) Citation

Gravil, Richard. Existentialism. Tirril [England]: Humanities-Ebooks, 2007.

MLA引文

Gravil, Richard. Existentialism. Humanities-Ebooks, 2007.

警告：這些引文格式不一定是100％准確.