| APA | FCO. (2012, February 9). In Acronym Geek. Retrieved 20:34, February 9, 2012, from http://www.acronymgeek.com/FCO |
| MLA | "FCO." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/FCO>. |
| MHRA | 'FCO', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/FCO> [accessed 9 February 2012] |
| Chicago | "FCO", http://www.acronymgeek.com/FCO (accessed February 9, 2012). |
| CBE/CSE | FCO [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/FCO. |
| Bluebook | FCO, http://www.acronymgeek.com/FCO (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FCO, http://www.acronymgeek.com/FCO (optional description here) (as of Feb. 9, 2012, 20:34). |
| AMA | FCO. Acronym Geek. February 9, 2012, 20:34. Available at: http://www.acronymgeek.com/FCO. Accessed February 9, 2012, 20:34. |