| APA | OAK. (2012, February 10). In Acronym Geek. Retrieved 16:39, February 10, 2012, from http://www.acronymgeek.com/OAK |
| MLA | "OAK." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/OAK>. |
| MHRA | 'OAK', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/OAK> [accessed 10 February 2012] |
| Chicago | "OAK", http://www.acronymgeek.com/OAK (accessed February 10, 2012). |
| CBE/CSE | OAK [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/OAK. |
| Bluebook | OAK, http://www.acronymgeek.com/OAK (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OAK, http://www.acronymgeek.com/OAK (optional description here) (as of Feb. 10, 2012, 16:39). |
| AMA | OAK. Acronym Geek. February 10, 2012, 16:39. Available at: http://www.acronymgeek.com/OAK. Accessed February 10, 2012, 16:39. |