| APA | DFPO. (2012, February 16). In Acronym Geek. Retrieved 04:49, February 16, 2012, from http://www.acronymgeek.com/DFPO |
| MLA | "DFPO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DFPO>. |
| MHRA | 'DFPO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DFPO> [accessed 16 February 2012] |
| Chicago | "DFPO", http://www.acronymgeek.com/DFPO (accessed February 16, 2012). |
| CBE/CSE | DFPO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DFPO. |
| Bluebook | DFPO, http://www.acronymgeek.com/DFPO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DFPO, http://www.acronymgeek.com/DFPO (optional description here) (as of Feb. 16, 2012, 04:49). |
| AMA | DFPO. Acronym Geek. February 16, 2012, 04:49. Available at: http://www.acronymgeek.com/DFPO. Accessed February 16, 2012, 04:49. |