| APA | ISBN. (2012, February 10). In Acronym Geek. Retrieved 11:47, February 10, 2012, from http://www.acronymgeek.com/ISBN |
| MLA | "ISBN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ISBN>. |
| MHRA | 'ISBN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ISBN> [accessed 10 February 2012] |
| Chicago | "ISBN", http://www.acronymgeek.com/ISBN (accessed February 10, 2012). |
| CBE/CSE | ISBN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ISBN. |
| Bluebook | ISBN, http://www.acronymgeek.com/ISBN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ISBN, http://www.acronymgeek.com/ISBN (optional description here) (as of Feb. 10, 2012, 11:47). |
| AMA | ISBN. Acronym Geek. February 10, 2012, 11:47. Available at: http://www.acronymgeek.com/ISBN. Accessed February 10, 2012, 11:47. |