| APA | HAGO. (2012, February 12). In Acronym Geek. Retrieved 02:56, February 12, 2012, from http://www.acronymgeek.com/HAGO |
| MLA | "HAGO." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/HAGO>. |
| MHRA | 'HAGO', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/HAGO> [accessed 12 February 2012] |
| Chicago | "HAGO", http://www.acronymgeek.com/HAGO (accessed February 12, 2012). |
| CBE/CSE | HAGO [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/HAGO. |
| Bluebook | HAGO, http://www.acronymgeek.com/HAGO (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAGO, http://www.acronymgeek.com/HAGO (optional description here) (as of Feb. 12, 2012, 02:56). |
| AMA | HAGO. Acronym Geek. February 12, 2012, 02:56. Available at: http://www.acronymgeek.com/HAGO. Accessed February 12, 2012, 02:56. |