| APA | GRCS. (2012, February 16). In Acronym Geek. Retrieved 02:57, February 16, 2012, from http://www.acronymgeek.com/GRCS |
| MLA | "GRCS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GRCS>. |
| MHRA | 'GRCS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GRCS> [accessed 16 February 2012] |
| Chicago | "GRCS", http://www.acronymgeek.com/GRCS (accessed February 16, 2012). |
| CBE/CSE | GRCS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GRCS. |
| Bluebook | GRCS, http://www.acronymgeek.com/GRCS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GRCS, http://www.acronymgeek.com/GRCS (optional description here) (as of Feb. 16, 2012, 02:57). |
| AMA | GRCS. Acronym Geek. February 16, 2012, 02:57. Available at: http://www.acronymgeek.com/GRCS. Accessed February 16, 2012, 02:57. |