| APA | GRFL. (2012, February 16). In Acronym Geek. Retrieved 21:34, February 16, 2012, from http://www.acronymgeek.com/GRFL |
| MLA | "GRFL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GRFL>. |
| MHRA | 'GRFL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GRFL> [accessed 16 February 2012] |
| Chicago | "GRFL", http://www.acronymgeek.com/GRFL (accessed February 16, 2012). |
| CBE/CSE | GRFL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GRFL. |
| Bluebook | GRFL, http://www.acronymgeek.com/GRFL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GRFL, http://www.acronymgeek.com/GRFL (optional description here) (as of Feb. 16, 2012, 21:34). |
| AMA | GRFL. Acronym Geek. February 16, 2012, 21:34. Available at: http://www.acronymgeek.com/GRFL. Accessed February 16, 2012, 21:34. |