| APA | ATK. (2012, February 13). In Acronym Geek. Retrieved 21:25, February 13, 2012, from http://www.acronymgeek.com/ATK |
| MLA | "ATK." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/ATK>. |
| MHRA | 'ATK', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/ATK> [accessed 13 February 2012] |
| Chicago | "ATK", http://www.acronymgeek.com/ATK (accessed February 13, 2012). |
| CBE/CSE | ATK [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/ATK. |
| Bluebook | ATK, http://www.acronymgeek.com/ATK (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ATK, http://www.acronymgeek.com/ATK (optional description here) (as of Feb. 13, 2012, 21:25). |
| AMA | ATK. Acronym Geek. February 13, 2012, 21:25. Available at: http://www.acronymgeek.com/ATK. Accessed February 13, 2012, 21:25. |