| APA | ARCH. (2012, February 14). In Acronym Geek. Retrieved 00:24, February 14, 2012, from http://www.acronymgeek.com/ARCH |
| MLA | "ARCH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ARCH>. |
| MHRA | 'ARCH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ARCH> [accessed 14 February 2012] |
| Chicago | "ARCH", http://www.acronymgeek.com/ARCH (accessed February 14, 2012). |
| CBE/CSE | ARCH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ARCH. |
| Bluebook | ARCH, http://www.acronymgeek.com/ARCH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ARCH, http://www.acronymgeek.com/ARCH (optional description here) (as of Feb. 14, 2012, 00:24). |
| AMA | ARCH. Acronym Geek. February 14, 2012, 00:24. Available at: http://www.acronymgeek.com/ARCH. Accessed February 14, 2012, 00:24. |