| APA | GSFC. (2012, February 10). In Acronym Geek. Retrieved 11:51, February 10, 2012, from http://www.acronymgeek.com/GSFC |
| MLA | "GSFC." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/GSFC>. |
| MHRA | 'GSFC', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/GSFC> [accessed 10 February 2012] |
| Chicago | "GSFC", http://www.acronymgeek.com/GSFC (accessed February 10, 2012). |
| CBE/CSE | GSFC [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/GSFC. |
| Bluebook | GSFC, http://www.acronymgeek.com/GSFC (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSFC, http://www.acronymgeek.com/GSFC (optional description here) (as of Feb. 10, 2012, 11:51). |
| AMA | GSFC. Acronym Geek. February 10, 2012, 11:51. Available at: http://www.acronymgeek.com/GSFC. Accessed February 10, 2012, 11:51. |