| APA | SPRG. (2012, February 16). In Acronym Geek. Retrieved 16:11, February 16, 2012, from http://www.acronymgeek.com/SPRG |
| MLA | "SPRG." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPRG>. |
| MHRA | 'SPRG', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPRG> [accessed 16 February 2012] |
| Chicago | "SPRG", http://www.acronymgeek.com/SPRG (accessed February 16, 2012). |
| CBE/CSE | SPRG [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPRG. |
| Bluebook | SPRG, http://www.acronymgeek.com/SPRG (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPRG, http://www.acronymgeek.com/SPRG (optional description here) (as of Feb. 16, 2012, 16:11). |
| AMA | SPRG. Acronym Geek. February 16, 2012, 16:11. Available at: http://www.acronymgeek.com/SPRG. Accessed February 16, 2012, 16:11. |