| APA | SPEC.. (2012, February 12). In Acronym Geek. Retrieved 15:05, February 12, 2012, from http://www.acronymgeek.com/SPEC. |
| MLA | "SPEC.." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/SPEC.>. |
| MHRA | 'SPEC.', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/SPEC.> [accessed 12 February 2012] |
| Chicago | "SPEC.", http://www.acronymgeek.com/SPEC. (accessed February 12, 2012). |
| CBE/CSE | SPEC. [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/SPEC.. |
| Bluebook | SPEC., http://www.acronymgeek.com/SPEC. (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPEC., http://www.acronymgeek.com/SPEC. (optional description here) (as of Feb. 12, 2012, 15:05). |
| AMA | SPEC.. Acronym Geek. February 12, 2012, 15:05. Available at: http://www.acronymgeek.com/SPEC.. Accessed February 12, 2012, 15:05. |