APA (7th ed.) Citation

Christen, A., & Bartholdt, R. (2005). Esperanto: Hearings before the Committee on Education. Project Gutenberg.

Chicago Style (17th ed.) Citation

Christen, A., and Richard Bartholdt. Esperanto: Hearings Before the Committee on Education. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Christen, A., and Richard Bartholdt. Esperanto: Hearings Before the Committee on Education. Project Gutenberg, 2005.

Warning: These citations may not always be 100% accurate.