| APA | ETPS. (2012, February 15). In Acronym Geek. Retrieved 07:52, February 15, 2012, from http://www.acronymgeek.com/ETPS |
| MLA | "ETPS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ETPS>. |
| MHRA | 'ETPS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ETPS> [accessed 15 February 2012] |
| Chicago | "ETPS", http://www.acronymgeek.com/ETPS (accessed February 15, 2012). |
| CBE/CSE | ETPS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ETPS. |
| Bluebook | ETPS, http://www.acronymgeek.com/ETPS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETPS, http://www.acronymgeek.com/ETPS (optional description here) (as of Feb. 15, 2012, 07:52). |
| AMA | ETPS. Acronym Geek. February 15, 2012, 07:52. Available at: http://www.acronymgeek.com/ETPS. Accessed February 15, 2012, 07:52. |