| APA | VOIPF. (2012, February 14). In Acronym Geek. Retrieved 09:00, February 14, 2012, from http://www.acronymgeek.com/VOIPF |
| MLA | "VOIPF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/VOIPF>. |
| MHRA | 'VOIPF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/VOIPF> [accessed 14 February 2012] |
| Chicago | "VOIPF", http://www.acronymgeek.com/VOIPF (accessed February 14, 2012). |
| CBE/CSE | VOIPF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/VOIPF. |
| Bluebook | VOIPF, http://www.acronymgeek.com/VOIPF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VOIPF, http://www.acronymgeek.com/VOIPF (optional description here) (as of Feb. 14, 2012, 09:00). |
| AMA | VOIPF. Acronym Geek. February 14, 2012, 09:00. Available at: http://www.acronymgeek.com/VOIPF. Accessed February 14, 2012, 09:00. |