| APA | SFXO. (2012, February 15). In Acronym Geek. Retrieved 07:02, February 15, 2012, from http://www.acronymgeek.com/SFXO |
| MLA | "SFXO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SFXO>. |
| MHRA | 'SFXO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SFXO> [accessed 15 February 2012] |
| Chicago | "SFXO", http://www.acronymgeek.com/SFXO (accessed February 15, 2012). |
| CBE/CSE | SFXO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SFXO. |
| Bluebook | SFXO, http://www.acronymgeek.com/SFXO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFXO, http://www.acronymgeek.com/SFXO (optional description here) (as of Feb. 15, 2012, 07:02). |
| AMA | SFXO. Acronym Geek. February 15, 2012, 07:02. Available at: http://www.acronymgeek.com/SFXO. Accessed February 15, 2012, 07:02. |