| APA | SO2R. (2012, February 16). In Acronym Geek. Retrieved 14:27, February 16, 2012, from http://www.acronymgeek.com/SO2R |
| MLA | "SO2R." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SO2R>. |
| MHRA | 'SO2R', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SO2R> [accessed 16 February 2012] |
| Chicago | "SO2R", http://www.acronymgeek.com/SO2R (accessed February 16, 2012). |
| CBE/CSE | SO2R [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SO2R. |
| Bluebook | SO2R, http://www.acronymgeek.com/SO2R (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SO2R, http://www.acronymgeek.com/SO2R (optional description here) (as of Feb. 16, 2012, 14:27). |
| AMA | SO2R. Acronym Geek. February 16, 2012, 14:27. Available at: http://www.acronymgeek.com/SO2R. Accessed February 16, 2012, 14:27. |