| APA | ER-169. (2012, February 12). In Acronym Geek. Retrieved 08:54, February 12, 2012, from http://www.acronymgeek.com/ER-169 |
| MLA | "ER-169." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ER-169>. |
| MHRA | 'ER-169', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ER-169> [accessed 12 February 2012] |
| Chicago | "ER-169", http://www.acronymgeek.com/ER-169 (accessed February 12, 2012). |
| CBE/CSE | ER-169 [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ER-169. |
| Bluebook | ER-169, http://www.acronymgeek.com/ER-169 (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ER-169, http://www.acronymgeek.com/ER-169 (optional description here) (as of Feb. 12, 2012, 08:54). |
| AMA | ER-169. Acronym Geek. February 12, 2012, 08:54. Available at: http://www.acronymgeek.com/ER-169. Accessed February 12, 2012, 08:54. |