| APA | SPM. (2012, February 14). In Acronym Geek. Retrieved 07:00, February 14, 2012, from http://www.acronymgeek.com/SPM |
| MLA | "SPM." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SPM>. |
| MHRA | 'SPM', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SPM> [accessed 14 February 2012] |
| Chicago | "SPM", http://www.acronymgeek.com/SPM (accessed February 14, 2012). |
| CBE/CSE | SPM [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SPM. |
| Bluebook | SPM, http://www.acronymgeek.com/SPM (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPM, http://www.acronymgeek.com/SPM (optional description here) (as of Feb. 14, 2012, 07:00). |
| AMA | SPM. Acronym Geek. February 14, 2012, 07:00. Available at: http://www.acronymgeek.com/SPM. Accessed February 14, 2012, 07:00. |