| APA | PFS. (2012, February 15). In Acronym Geek. Retrieved 03:20, February 15, 2012, from http://www.acronymgeek.com/PFS |
| MLA | "PFS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PFS>. |
| MHRA | 'PFS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PFS> [accessed 15 February 2012] |
| Chicago | "PFS", http://www.acronymgeek.com/PFS (accessed February 15, 2012). |
| CBE/CSE | PFS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PFS. |
| Bluebook | PFS, http://www.acronymgeek.com/PFS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PFS, http://www.acronymgeek.com/PFS (optional description here) (as of Feb. 15, 2012, 03:20). |
| AMA | PFS. Acronym Geek. February 15, 2012, 03:20. Available at: http://www.acronymgeek.com/PFS. Accessed February 15, 2012, 03:20. |