| APA | HCU. (2012, February 14). In Acronym Geek. Retrieved 03:57, February 14, 2012, from http://www.acronymgeek.com/HCU |
| MLA | "HCU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HCU>. |
| MHRA | 'HCU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HCU> [accessed 14 February 2012] |
| Chicago | "HCU", http://www.acronymgeek.com/HCU (accessed February 14, 2012). |
| CBE/CSE | HCU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HCU. |
| Bluebook | HCU, http://www.acronymgeek.com/HCU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HCU, http://www.acronymgeek.com/HCU (optional description here) (as of Feb. 14, 2012, 03:57). |
| AMA | HCU. Acronym Geek. February 14, 2012, 03:57. Available at: http://www.acronymgeek.com/HCU. Accessed February 14, 2012, 03:57. |