| Style | Reference Text |
|---|
| APA | HFO. (2009, December 2). In All Acronyms. Retrieved 07:35, December 2, 2009, from http://www.all-acronyms.com/HFO |
| MLA | "HFO." All Acronyms. 2 Dec 2009, 07:35. All Acronyms. 2 Dec 2009 <http://www.all-acronyms.com/HFO>. |
| MHRA | 'HFO', All Acronyms, 2 December 2009, 07:35, <http://www.all-acronyms.com/HFO> [accessed 2 December 2009] |
| Chicago | "HFO," http://www.all-acronyms.com/HFO (accessed December 2, 2009). |
| CBE/CSE | HFO [Internet]. All Acronyms; 2009 Dec 2, 07:35 [cited 2009 Dec 2]. Available from: http://www.all-acronyms.com/HFO. |
| Bluebook | HFO, http://www.all-acronyms.com/HFO (last visited December 2, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, HFO, http://www.all-acronyms.com/HFO (optional description here) (as of Dec. 2, 2009, 07:35). |
| AMA | HFO. All Acronyms. December 2, 2009, 07:35. Available at: http://www.all-acronyms.com/HFO. Accessed December 2, 2009. |
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