| APA | YOY. (2012, February 11). In Acronym Geek. Retrieved 22:35, February 11, 2012, from http://www.acronymgeek.com/YOY |
| MLA | "YOY." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/YOY>. |
| MHRA | 'YOY', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/YOY> [accessed 11 February 2012] |
| Chicago | "YOY", http://www.acronymgeek.com/YOY (accessed February 11, 2012). |
| CBE/CSE | YOY [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/YOY. |
| Bluebook | YOY, http://www.acronymgeek.com/YOY (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YOY, http://www.acronymgeek.com/YOY (optional description here) (as of Feb. 11, 2012, 22:35). |
| AMA | YOY. Acronym Geek. February 11, 2012, 22:35. Available at: http://www.acronymgeek.com/YOY. Accessed February 11, 2012, 22:35. |