| APA | HHWI. (2012, February 15). In Acronym Geek. Retrieved 03:06, February 15, 2012, from http://www.acronymgeek.com/HHWI |
| MLA | "HHWI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HHWI>. |
| MHRA | 'HHWI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HHWI> [accessed 15 February 2012] |
| Chicago | "HHWI", http://www.acronymgeek.com/HHWI (accessed February 15, 2012). |
| CBE/CSE | HHWI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HHWI. |
| Bluebook | HHWI, http://www.acronymgeek.com/HHWI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHWI, http://www.acronymgeek.com/HHWI (optional description here) (as of Feb. 15, 2012, 03:06). |
| AMA | HHWI. Acronym Geek. February 15, 2012, 03:06. Available at: http://www.acronymgeek.com/HHWI. Accessed February 15, 2012, 03:06. |