APA (7th ed.) Citation

Boyd, E. A. (2010). The Sacred Egoism of Sinn Féin. Project Gutenberg.

Chicago Style (17th ed.) Citation

Boyd, Ernest Augustus. The Sacred Egoism of Sinn Féin. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Boyd, Ernest Augustus. The Sacred Egoism of Sinn Féin. Project Gutenberg, 2010.

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