| Style | Reference Text |
|---|
| APA | FR-221. (2009, November 8). In All Acronyms. Retrieved 02:17, November 8, 2009, from http://www.all-acronyms.com/FR-221 |
| MLA | "FR-221." All Acronyms. 8 Nov 2009, 02:17. All Acronyms. 8 Nov 2009 <http://www.all-acronyms.com/FR-221>. |
| MHRA | 'FR-221', All Acronyms, 8 November 2009, 02:17, <http://www.all-acronyms.com/FR-221> [accessed 8 November 2009] |
| Chicago | "FR-221," http://www.all-acronyms.com/FR-221 (accessed November 8, 2009). |
| CBE/CSE | FR-221 [Internet]. All Acronyms; 2009 Nov 8, 02:17 [cited 2009 Nov 8]. Available from: http://www.all-acronyms.com/FR-221. |
| Bluebook | FR-221, http://www.all-acronyms.com/FR-221 (last visited November 8, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, FR-221, http://www.all-acronyms.com/FR-221 (optional description here) (as of Nov. 8, 2009, 02:17). |
| AMA | FR-221. All Acronyms. November 8, 2009, 02:17. Available at: http://www.all-acronyms.com/FR-221. Accessed November 8, 2009. |
Francium-221