| APA | OFP. (2012, February 10). In Acronym Geek. Retrieved 17:52, February 10, 2012, from http://www.acronymgeek.com/OFP |
| MLA | "OFP." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/OFP>. |
| MHRA | 'OFP', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/OFP> [accessed 10 February 2012] |
| Chicago | "OFP", http://www.acronymgeek.com/OFP (accessed February 10, 2012). |
| CBE/CSE | OFP [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/OFP. |
| Bluebook | OFP, http://www.acronymgeek.com/OFP (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OFP, http://www.acronymgeek.com/OFP (optional description here) (as of Feb. 10, 2012, 17:52). |
| AMA | OFP. Acronym Geek. February 10, 2012, 17:52. Available at: http://www.acronymgeek.com/OFP. Accessed February 10, 2012, 17:52. |