APA引文

Verne, J. (2010). A journey to the centre of the earth. Project Gutenberg.

Chicago Style (17th ed.) Citation

Verne, Jules. A Journey to the Centre of the Earth. To be supplied: Project Gutenberg, 2010.

MLA引文

Verne, Jules. A Journey to the Centre of the Earth. Project Gutenberg, 2010.

警告：這些引文格式不一定是100％准確.