| APA | BL. (2012, February 14). In Acronym Geek. Retrieved 06:55, February 14, 2012, from http://www.acronymgeek.com/BL |
| MLA | "BL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/BL>. |
| MHRA | 'BL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/BL> [accessed 14 February 2012] |
| Chicago | "BL", http://www.acronymgeek.com/BL (accessed February 14, 2012). |
| CBE/CSE | BL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/BL. |
| Bluebook | BL, http://www.acronymgeek.com/BL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BL, http://www.acronymgeek.com/BL (optional description here) (as of Feb. 14, 2012, 06:55). |
| AMA | BL. Acronym Geek. February 14, 2012, 06:55. Available at: http://www.acronymgeek.com/BL. Accessed February 14, 2012, 06:55. |