| APA | HXB. (2012, February 14). In Acronym Geek. Retrieved 04:19, February 14, 2012, from http://www.acronymgeek.com/HXB |
| MLA | "HXB." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HXB>. |
| MHRA | 'HXB', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HXB> [accessed 14 February 2012] |
| Chicago | "HXB", http://www.acronymgeek.com/HXB (accessed February 14, 2012). |
| CBE/CSE | HXB [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HXB. |
| Bluebook | HXB, http://www.acronymgeek.com/HXB (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HXB, http://www.acronymgeek.com/HXB (optional description here) (as of Feb. 14, 2012, 04:19). |
| AMA | HXB. Acronym Geek. February 14, 2012, 04:19. Available at: http://www.acronymgeek.com/HXB. Accessed February 14, 2012, 04:19. |