| APA | DAY. (2012, February 11). In Acronym Geek. Retrieved 22:26, February 11, 2012, from http://www.acronymgeek.com/DAY |
| MLA | "DAY." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DAY>. |
| MHRA | 'DAY', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DAY> [accessed 11 February 2012] |
| Chicago | "DAY", http://www.acronymgeek.com/DAY (accessed February 11, 2012). |
| CBE/CSE | DAY [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DAY. |
| Bluebook | DAY, http://www.acronymgeek.com/DAY (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DAY, http://www.acronymgeek.com/DAY (optional description here) (as of Feb. 11, 2012, 22:26). |
| AMA | DAY. Acronym Geek. February 11, 2012, 22:26. Available at: http://www.acronymgeek.com/DAY. Accessed February 11, 2012, 22:26. |