| APA | GCFO. (2012, February 16). In Acronym Geek. Retrieved 02:44, February 16, 2012, from http://www.acronymgeek.com/GCFO |
| MLA | "GCFO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GCFO>. |
| MHRA | 'GCFO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GCFO> [accessed 16 February 2012] |
| Chicago | "GCFO", http://www.acronymgeek.com/GCFO (accessed February 16, 2012). |
| CBE/CSE | GCFO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GCFO. |
| Bluebook | GCFO, http://www.acronymgeek.com/GCFO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCFO, http://www.acronymgeek.com/GCFO (optional description here) (as of Feb. 16, 2012, 02:44). |
| AMA | GCFO. Acronym Geek. February 16, 2012, 02:44. Available at: http://www.acronymgeek.com/GCFO. Accessed February 16, 2012, 02:44. |