| APA | STM4. (2012, February 10). In Acronym Geek. Retrieved 09:54, February 10, 2012, from http://www.acronymgeek.com/STM4 |
| MLA | "STM4." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/STM4>. |
| MHRA | 'STM4', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/STM4> [accessed 10 February 2012] |
| Chicago | "STM4", http://www.acronymgeek.com/STM4 (accessed February 10, 2012). |
| CBE/CSE | STM4 [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/STM4. |
| Bluebook | STM4, http://www.acronymgeek.com/STM4 (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, STM4, http://www.acronymgeek.com/STM4 (optional description here) (as of Feb. 10, 2012, 09:54). |
| AMA | STM4. Acronym Geek. February 10, 2012, 09:54. Available at: http://www.acronymgeek.com/STM4. Accessed February 10, 2012, 09:54. |