| APA | HRFO. (2012, February 15). In Acronym Geek. Retrieved 13:25, February 15, 2012, from http://www.acronymgeek.com/HRFO |
| MLA | "HRFO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HRFO>. |
| MHRA | 'HRFO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HRFO> [accessed 15 February 2012] |
| Chicago | "HRFO", http://www.acronymgeek.com/HRFO (accessed February 15, 2012). |
| CBE/CSE | HRFO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HRFO. |
| Bluebook | HRFO, http://www.acronymgeek.com/HRFO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRFO, http://www.acronymgeek.com/HRFO (optional description here) (as of Feb. 15, 2012, 13:25). |
| AMA | HRFO. Acronym Geek. February 15, 2012, 13:25. Available at: http://www.acronymgeek.com/HRFO. Accessed February 15, 2012, 13:25. |