| APA | HMSI. (2012, February 17). In Acronym Geek. Retrieved 01:04, February 17, 2012, from http://www.acronymgeek.com/HMSI |
| MLA | "HMSI." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HMSI>. |
| MHRA | 'HMSI', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HMSI> [accessed 17 February 2012] |
| Chicago | "HMSI", http://www.acronymgeek.com/HMSI (accessed February 17, 2012). |
| CBE/CSE | HMSI [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HMSI. |
| Bluebook | HMSI, http://www.acronymgeek.com/HMSI (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HMSI, http://www.acronymgeek.com/HMSI (optional description here) (as of Feb. 17, 2012, 01:04). |
| AMA | HMSI. Acronym Geek. February 17, 2012, 01:04. Available at: http://www.acronymgeek.com/HMSI. Accessed February 17, 2012, 01:04. |