| APA | C4PH. (2012, February 16). In Acronym Geek. Retrieved 19:39, February 16, 2012, from http://www.acronymgeek.com/C4PH |
| MLA | "C4PH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/C4PH>. |
| MHRA | 'C4PH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/C4PH> [accessed 16 February 2012] |
| Chicago | "C4PH", http://www.acronymgeek.com/C4PH (accessed February 16, 2012). |
| CBE/CSE | C4PH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/C4PH. |
| Bluebook | C4PH, http://www.acronymgeek.com/C4PH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, C4PH, http://www.acronymgeek.com/C4PH (optional description here) (as of Feb. 16, 2012, 19:39). |
| AMA | C4PH. Acronym Geek. February 16, 2012, 19:39. Available at: http://www.acronymgeek.com/C4PH. Accessed February 16, 2012, 19:39. |