| APA | HSG. (2012, February 9). In Acronym Geek. Retrieved 20:44, February 9, 2012, from http://www.acronymgeek.com/HSG |
| MLA | "HSG." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/HSG>. |
| MHRA | 'HSG', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/HSG> [accessed 9 February 2012] |
| Chicago | "HSG", http://www.acronymgeek.com/HSG (accessed February 9, 2012). |
| CBE/CSE | HSG [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/HSG. |
| Bluebook | HSG, http://www.acronymgeek.com/HSG (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSG, http://www.acronymgeek.com/HSG (optional description here) (as of Feb. 9, 2012, 20:44). |
| AMA | HSG. Acronym Geek. February 9, 2012, 20:44. Available at: http://www.acronymgeek.com/HSG. Accessed February 9, 2012, 20:44. |