| Style | Reference Text |
|---|
| APA | SC-21. (2009, November 30). In All Acronyms. Retrieved 00:51, November 30, 2009, from http://www.all-acronyms.com/SC-21 |
| MLA | "SC-21." All Acronyms. 30 Nov 2009, 00:51. All Acronyms. 30 Nov 2009 <http://www.all-acronyms.com/SC-21>. |
| MHRA | 'SC-21', All Acronyms, 30 November 2009, 00:51, <http://www.all-acronyms.com/SC-21> [accessed 30 November 2009] |
| Chicago | "SC-21," http://www.all-acronyms.com/SC-21 (accessed November 30, 2009). |
| CBE/CSE | SC-21 [Internet]. All Acronyms; 2009 Nov 30, 00:51 [cited 2009 Nov 30]. Available from: http://www.all-acronyms.com/SC-21. |
| Bluebook | SC-21, http://www.all-acronyms.com/SC-21 (last visited November 30, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, SC-21, http://www.all-acronyms.com/SC-21 (optional description here) (as of Nov. 30, 2009, 00:51). |
| AMA | SC-21. All Acronyms. November 30, 2009, 00:51. Available at: http://www.all-acronyms.com/SC-21. Accessed November 30, 2009. |
Surface Combatant, 21st century