APA (7th ed.) Citation

Stallman, R. (1993). GNU Emacs manual (9th ed., Emacs version 19.19.). Free Software Foundation.

Chicago Style (17th ed.) Citation

Stallman, Richard. GNU Emacs Manual. 9th ed., Emacs version 19.19. Cambridge, MA: Free Software Foundation, 1993.

MLA (9th ed.) Citation

Stallman, Richard. GNU Emacs Manual. 9th ed., Emacs version 19.19. Free Software Foundation, 1993.

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