| APA | HOA. (2012, February 10). In Acronym Geek. Retrieved 07:24, February 10, 2012, from http://www.acronymgeek.com/HOA |
| MLA | "HOA." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/HOA>. |
| MHRA | 'HOA', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/HOA> [accessed 10 February 2012] |
| Chicago | "HOA", http://www.acronymgeek.com/HOA (accessed February 10, 2012). |
| CBE/CSE | HOA [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/HOA. |
| Bluebook | HOA, http://www.acronymgeek.com/HOA (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HOA, http://www.acronymgeek.com/HOA (optional description here) (as of Feb. 10, 2012, 07:24). |
| AMA | HOA. Acronym Geek. February 10, 2012, 07:24. Available at: http://www.acronymgeek.com/HOA. Accessed February 10, 2012, 07:24. |