| APA | TOP. (2012, February 13). In Acronym Geek. Retrieved 21:12, February 13, 2012, from http://www.acronymgeek.com/TOP |
| MLA | "TOP." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/TOP>. |
| MHRA | 'TOP', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/TOP> [accessed 13 February 2012] |
| Chicago | "TOP", http://www.acronymgeek.com/TOP (accessed February 13, 2012). |
| CBE/CSE | TOP [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/TOP. |
| Bluebook | TOP, http://www.acronymgeek.com/TOP (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TOP, http://www.acronymgeek.com/TOP (optional description here) (as of Feb. 13, 2012, 21:12). |
| AMA | TOP. Acronym Geek. February 13, 2012, 21:12. Available at: http://www.acronymgeek.com/TOP. Accessed February 13, 2012, 21:12. |