| APA | S4YP. (2012, February 16). In Acronym Geek. Retrieved 05:06, February 16, 2012, from http://www.acronymgeek.com/S4YP |
| MLA | "S4YP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/S4YP>. |
| MHRA | 'S4YP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/S4YP> [accessed 16 February 2012] |
| Chicago | "S4YP", http://www.acronymgeek.com/S4YP (accessed February 16, 2012). |
| CBE/CSE | S4YP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/S4YP. |
| Bluebook | S4YP, http://www.acronymgeek.com/S4YP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S4YP, http://www.acronymgeek.com/S4YP (optional description here) (as of Feb. 16, 2012, 05:06). |
| AMA | S4YP. Acronym Geek. February 16, 2012, 05:06. Available at: http://www.acronymgeek.com/S4YP. Accessed February 16, 2012, 05:06. |