| APA | IBM. (2012, February 8). In Acronym Geek. Retrieved 12:07, February 8, 2012, from http://www.acronymgeek.com/IBM |
| MLA | "IBM." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/IBM>. |
| MHRA | 'IBM', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/IBM> [accessed 8 February 2012] |
| Chicago | "IBM", http://www.acronymgeek.com/IBM (accessed February 8, 2012). |
| CBE/CSE | IBM [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/IBM. |
| Bluebook | IBM, http://www.acronymgeek.com/IBM (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IBM, http://www.acronymgeek.com/IBM (optional description here) (as of Feb. 8, 2012, 12:07). |
| AMA | IBM. Acronym Geek. February 8, 2012, 12:07. Available at: http://www.acronymgeek.com/IBM. Accessed February 8, 2012, 12:07. |