| APA | SP&E. (2012, February 12). In Acronym Geek. Retrieved 15:24, February 12, 2012, from http://www.acronymgeek.com/SP&E |
| MLA | "SP&E." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/SP&E>. |
| MHRA | 'SP&E', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/SP&E> [accessed 12 February 2012] |
| Chicago | "SP&E", http://www.acronymgeek.com/SP&E (accessed February 12, 2012). |
| CBE/CSE | SP&E [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/SP&E. |
| Bluebook | SP&E, http://www.acronymgeek.com/SP&E (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SP&E, http://www.acronymgeek.com/SP&E (optional description here) (as of Feb. 12, 2012, 15:24). |
| AMA | SP&E. Acronym Geek. February 12, 2012, 15:24. Available at: http://www.acronymgeek.com/SP&E. Accessed February 12, 2012, 15:24. |