APA引文

(2002). Free software, free society: Selected essays of Richard M. Stallman. GNU Press.

Chicago Edition Citation

Free Software, Free Society: Selected Essays of Richard M. Stallman. Boston: GNU Press, 2002.

MLA引文

Free Software, Free Society: Selected Essays of Richard M. Stallman. GNU Press, 2002.

警告：這些引文格式不一定是100％准確.