| APA | MTR. (2012, February 14). In Acronym Geek. Retrieved 20:49, February 14, 2012, from http://www.acronymgeek.com/MTR |
| MLA | "MTR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/MTR>. |
| MHRA | 'MTR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/MTR> [accessed 14 February 2012] |
| Chicago | "MTR", http://www.acronymgeek.com/MTR (accessed February 14, 2012). |
| CBE/CSE | MTR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/MTR. |
| Bluebook | MTR, http://www.acronymgeek.com/MTR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MTR, http://www.acronymgeek.com/MTR (optional description here) (as of Feb. 14, 2012, 20:49). |
| AMA | MTR. Acronym Geek. February 14, 2012, 20:49. Available at: http://www.acronymgeek.com/MTR. Accessed February 14, 2012, 20:49. |