| APA | GRDT. (2012, February 15). In Acronym Geek. Retrieved 13:27, February 15, 2012, from http://www.acronymgeek.com/GRDT |
| MLA | "GRDT." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GRDT>. |
| MHRA | 'GRDT', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GRDT> [accessed 15 February 2012] |
| Chicago | "GRDT", http://www.acronymgeek.com/GRDT (accessed February 15, 2012). |
| CBE/CSE | GRDT [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GRDT. |
| Bluebook | GRDT, http://www.acronymgeek.com/GRDT (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GRDT, http://www.acronymgeek.com/GRDT (optional description here) (as of Feb. 15, 2012, 13:27). |
| AMA | GRDT. Acronym Geek. February 15, 2012, 13:27. Available at: http://www.acronymgeek.com/GRDT. Accessed February 15, 2012, 13:27. |