| APA | SPIH. (2012, February 15). In Acronym Geek. Retrieved 05:27, February 15, 2012, from http://www.acronymgeek.com/SPIH |
| MLA | "SPIH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SPIH>. |
| MHRA | 'SPIH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SPIH> [accessed 15 February 2012] |
| Chicago | "SPIH", http://www.acronymgeek.com/SPIH (accessed February 15, 2012). |
| CBE/CSE | SPIH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SPIH. |
| Bluebook | SPIH, http://www.acronymgeek.com/SPIH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPIH, http://www.acronymgeek.com/SPIH (optional description here) (as of Feb. 15, 2012, 05:27). |
| AMA | SPIH. Acronym Geek. February 15, 2012, 05:27. Available at: http://www.acronymgeek.com/SPIH. Accessed February 15, 2012, 05:27. |