| APA | SPDP. (2012, February 16). In Acronym Geek. Retrieved 04:35, February 16, 2012, from http://www.acronymgeek.com/SPDP |
| MLA | "SPDP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPDP>. |
| MHRA | 'SPDP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPDP> [accessed 16 February 2012] |
| Chicago | "SPDP", http://www.acronymgeek.com/SPDP (accessed February 16, 2012). |
| CBE/CSE | SPDP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPDP. |
| Bluebook | SPDP, http://www.acronymgeek.com/SPDP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPDP, http://www.acronymgeek.com/SPDP (optional description here) (as of Feb. 16, 2012, 04:35). |
| AMA | SPDP. Acronym Geek. February 16, 2012, 04:35. Available at: http://www.acronymgeek.com/SPDP. Accessed February 16, 2012, 04:35. |