| APA | HBOC. (2012, February 10). In Acronym Geek. Retrieved 17:48, February 10, 2012, from http://www.acronymgeek.com/HBOC |
| MLA | "HBOC." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/HBOC>. |
| MHRA | 'HBOC', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/HBOC> [accessed 10 February 2012] |
| Chicago | "HBOC", http://www.acronymgeek.com/HBOC (accessed February 10, 2012). |
| CBE/CSE | HBOC [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/HBOC. |
| Bluebook | HBOC, http://www.acronymgeek.com/HBOC (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBOC, http://www.acronymgeek.com/HBOC (optional description here) (as of Feb. 10, 2012, 17:48). |
| AMA | HBOC. Acronym Geek. February 10, 2012, 17:48. Available at: http://www.acronymgeek.com/HBOC. Accessed February 10, 2012, 17:48. |