| APA | SPNG. (2012, February 16). In Acronym Geek. Retrieved 05:36, February 16, 2012, from http://www.acronymgeek.com/SPNG |
| MLA | "SPNG." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPNG>. |
| MHRA | 'SPNG', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPNG> [accessed 16 February 2012] |
| Chicago | "SPNG", http://www.acronymgeek.com/SPNG (accessed February 16, 2012). |
| CBE/CSE | SPNG [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPNG. |
| Bluebook | SPNG, http://www.acronymgeek.com/SPNG (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPNG, http://www.acronymgeek.com/SPNG (optional description here) (as of Feb. 16, 2012, 05:36). |
| AMA | SPNG. Acronym Geek. February 16, 2012, 05:36. Available at: http://www.acronymgeek.com/SPNG. Accessed February 16, 2012, 05:36. |