| APA | PLC. (2012, February 9). In Acronym Geek. Retrieved 18:32, February 9, 2012, from http://www.acronymgeek.com/PLC |
| MLA | "PLC." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/PLC>. |
| MHRA | 'PLC', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/PLC> [accessed 9 February 2012] |
| Chicago | "PLC", http://www.acronymgeek.com/PLC (accessed February 9, 2012). |
| CBE/CSE | PLC [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/PLC. |
| Bluebook | PLC, http://www.acronymgeek.com/PLC (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PLC, http://www.acronymgeek.com/PLC (optional description here) (as of Feb. 9, 2012, 18:32). |
| AMA | PLC. Acronym Geek. February 9, 2012, 18:32. Available at: http://www.acronymgeek.com/PLC. Accessed February 9, 2012, 18:32. |