| APA | CAL.. (2012, February 10). In Acronym Geek. Retrieved 13:10, February 10, 2012, from http://www.acronymgeek.com/CAL. |
| MLA | "CAL.." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/CAL.>. |
| MHRA | 'CAL.', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/CAL.> [accessed 10 February 2012] |
| Chicago | "CAL.", http://www.acronymgeek.com/CAL. (accessed February 10, 2012). |
| CBE/CSE | CAL. [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/CAL.. |
| Bluebook | CAL., http://www.acronymgeek.com/CAL. (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CAL., http://www.acronymgeek.com/CAL. (optional description here) (as of Feb. 10, 2012, 13:10). |
| AMA | CAL.. Acronym Geek. February 10, 2012, 13:10. Available at: http://www.acronymgeek.com/CAL.. Accessed February 10, 2012, 13:10. |