APA引文

Douglass, F. (2010). Narrative of the life of frederick douglass. Project Gutenberg.

Chicago Style (17th ed.) Citation

Douglass, Frederick. Narrative of the Life of Frederick Douglass. To be supplied: Project Gutenberg, 2010.

MLA引文

Douglass, Frederick. Narrative of the Life of Frederick Douglass. Project Gutenberg, 2010.

警告：這些引文格式不一定是100％准確.