| APA | GCRS. (2012, February 17). In Acronym Geek. Retrieved 02:52, February 17, 2012, from http://www.acronymgeek.com/GCRS |
| MLA | "GCRS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/GCRS>. |
| MHRA | 'GCRS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/GCRS> [accessed 17 February 2012] |
| Chicago | "GCRS", http://www.acronymgeek.com/GCRS (accessed February 17, 2012). |
| CBE/CSE | GCRS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/GCRS. |
| Bluebook | GCRS, http://www.acronymgeek.com/GCRS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCRS, http://www.acronymgeek.com/GCRS (optional description here) (as of Feb. 17, 2012, 02:52). |
| AMA | GCRS. Acronym Geek. February 17, 2012, 02:52. Available at: http://www.acronymgeek.com/GCRS. Accessed February 17, 2012, 02:52. |