| APA | HCE. (2012, February 14). In Acronym Geek. Retrieved 07:15, February 14, 2012, from http://www.acronymgeek.com/HCE |
| MLA | "HCE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HCE>. |
| MHRA | 'HCE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HCE> [accessed 14 February 2012] |
| Chicago | "HCE", http://www.acronymgeek.com/HCE (accessed February 14, 2012). |
| CBE/CSE | HCE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HCE. |
| Bluebook | HCE, http://www.acronymgeek.com/HCE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HCE, http://www.acronymgeek.com/HCE (optional description here) (as of Feb. 14, 2012, 07:15). |
| AMA | HCE. Acronym Geek. February 14, 2012, 07:15. Available at: http://www.acronymgeek.com/HCE. Accessed February 14, 2012, 07:15. |