APA (7th ed.) Citation

Lewis, B. (1985). The Assassins: A radical sect in Islam (First published.). Al Saqi.

Chicago Style (17th ed.) Citation

Lewis, Bernard. The Assassins: A Radical Sect in Islam. First published. London: Al Saqi, 1985.

MLA (9th ed.) Citation

Lewis, Bernard. The Assassins: A Radical Sect in Islam. First published. Al Saqi, 1985.

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