| APA | I.E.. (2012, February 12). In Acronym Geek. Retrieved 12:39, February 12, 2012, from http://www.acronymgeek.com/I.E. |
| MLA | "I.E.." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/I.E.>. |
| MHRA | 'I.E.', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/I.E.> [accessed 12 February 2012] |
| Chicago | "I.E.", http://www.acronymgeek.com/I.E. (accessed February 12, 2012). |
| CBE/CSE | I.E. [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/I.E.. |
| Bluebook | I.E., http://www.acronymgeek.com/I.E. (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, I.E., http://www.acronymgeek.com/I.E. (optional description here) (as of Feb. 12, 2012, 12:39). |
| AMA | I.E.. Acronym Geek. February 12, 2012, 12:39. Available at: http://www.acronymgeek.com/I.E.. Accessed February 12, 2012, 12:39. |