| APA | SPDX. (2012, February 16). In Acronym Geek. Retrieved 01:26, February 16, 2012, from http://www.acronymgeek.com/SPDX |
| MLA | "SPDX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPDX>. |
| MHRA | 'SPDX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPDX> [accessed 16 February 2012] |
| Chicago | "SPDX", http://www.acronymgeek.com/SPDX (accessed February 16, 2012). |
| CBE/CSE | SPDX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPDX. |
| Bluebook | SPDX, http://www.acronymgeek.com/SPDX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPDX, http://www.acronymgeek.com/SPDX (optional description here) (as of Feb. 16, 2012, 01:26). |
| AMA | SPDX. Acronym Geek. February 16, 2012, 01:26. Available at: http://www.acronymgeek.com/SPDX. Accessed February 16, 2012, 01:26. |