| APA | HSDI. (2012, February 15). In Acronym Geek. Retrieved 04:54, February 15, 2012, from http://www.acronymgeek.com/HSDI |
| MLA | "HSDI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HSDI>. |
| MHRA | 'HSDI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HSDI> [accessed 15 February 2012] |
| Chicago | "HSDI", http://www.acronymgeek.com/HSDI (accessed February 15, 2012). |
| CBE/CSE | HSDI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HSDI. |
| Bluebook | HSDI, http://www.acronymgeek.com/HSDI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSDI, http://www.acronymgeek.com/HSDI (optional description here) (as of Feb. 15, 2012, 04:54). |
| AMA | HSDI. Acronym Geek. February 15, 2012, 04:54. Available at: http://www.acronymgeek.com/HSDI. Accessed February 15, 2012, 04:54. |