| APA | SPON. (2012, February 16). In Acronym Geek. Retrieved 03:33, February 16, 2012, from http://www.acronymgeek.com/SPON |
| MLA | "SPON." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPON>. |
| MHRA | 'SPON', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPON> [accessed 16 February 2012] |
| Chicago | "SPON", http://www.acronymgeek.com/SPON (accessed February 16, 2012). |
| CBE/CSE | SPON [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPON. |
| Bluebook | SPON, http://www.acronymgeek.com/SPON (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPON, http://www.acronymgeek.com/SPON (optional description here) (as of Feb. 16, 2012, 03:33). |
| AMA | SPON. Acronym Geek. February 16, 2012, 03:33. Available at: http://www.acronymgeek.com/SPON. Accessed February 16, 2012, 03:33. |