| APA | FOCS. (2012, February 14). In Acronym Geek. Retrieved 00:52, February 14, 2012, from http://www.acronymgeek.com/FOCS |
| MLA | "FOCS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/FOCS>. |
| MHRA | 'FOCS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/FOCS> [accessed 14 February 2012] |
| Chicago | "FOCS", http://www.acronymgeek.com/FOCS (accessed February 14, 2012). |
| CBE/CSE | FOCS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/FOCS. |
| Bluebook | FOCS, http://www.acronymgeek.com/FOCS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FOCS, http://www.acronymgeek.com/FOCS (optional description here) (as of Feb. 14, 2012, 00:52). |
| AMA | FOCS. Acronym Geek. February 14, 2012, 00:52. Available at: http://www.acronymgeek.com/FOCS. Accessed February 14, 2012, 00:52. |