| APA | OER. (2012, February 9). In Acronym Geek. Retrieved 21:12, February 9, 2012, from http://www.acronymgeek.com/OER |
| MLA | "OER." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/OER>. |
| MHRA | 'OER', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/OER> [accessed 9 February 2012] |
| Chicago | "OER", http://www.acronymgeek.com/OER (accessed February 9, 2012). |
| CBE/CSE | OER [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/OER. |
| Bluebook | OER, http://www.acronymgeek.com/OER (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OER, http://www.acronymgeek.com/OER (optional description here) (as of Feb. 9, 2012, 21:12). |
| AMA | OER. Acronym Geek. February 9, 2012, 21:12. Available at: http://www.acronymgeek.com/OER. Accessed February 9, 2012, 21:12. |