| APA | A2SF. (2012, February 12). In Acronym Geek. Retrieved 07:23, February 12, 2012, from http://www.acronymgeek.com/A2SF |
| MLA | "A2SF." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/A2SF>. |
| MHRA | 'A2SF', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/A2SF> [accessed 12 February 2012] |
| Chicago | "A2SF", http://www.acronymgeek.com/A2SF (accessed February 12, 2012). |
| CBE/CSE | A2SF [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/A2SF. |
| Bluebook | A2SF, http://www.acronymgeek.com/A2SF (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, A2SF, http://www.acronymgeek.com/A2SF (optional description here) (as of Feb. 12, 2012, 07:23). |
| AMA | A2SF. Acronym Geek. February 12, 2012, 07:23. Available at: http://www.acronymgeek.com/A2SF. Accessed February 12, 2012, 07:23. |