| APA | Historical Information (HI). (2012, February 14). In Acronym Geek. Retrieved 05:52, February 14, 2012, from http://www.acronymgeek.com/HI/Historical_Information |
| MLA | "Historical Information (HI)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HI/Historical_Information>. |
| MHRA | 'Historical Information (HI)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HI/Historical_Information> [accessed 14 February 2012] |
| Chicago | "Historical Information (HI)", http://www.acronymgeek.com/HI/Historical_Information (accessed February 14, 2012). |
| CBE/CSE | Historical Information (HI) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HI/Historical_Information. |
| Bluebook | Historical Information (HI), http://www.acronymgeek.com/HI/Historical_Information (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Historical Information (HI), http://www.acronymgeek.com/HI/Historical_Information (optional description here) (as of Feb. 14, 2012, 05:52). |
| AMA | Historical Information (HI). Acronym Geek. February 14, 2012, 05:52. Available at: http://www.acronymgeek.com/HI/Historical_Information. Accessed February 14, 2012, 05:52. |