| APA | Zero Percent One (ZPO). (2012, February 14). In Acronym Geek. Retrieved 05:43, February 14, 2012, from http://www.acronymgeek.com/ZPO/Zero_Percent_One |
| MLA | "Zero Percent One (ZPO)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZPO/Zero_Percent_One>. |
| MHRA | 'Zero Percent One (ZPO)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZPO/Zero_Percent_One> [accessed 14 February 2012] |
| Chicago | "Zero Percent One (ZPO)", http://www.acronymgeek.com/ZPO/Zero_Percent_One (accessed February 14, 2012). |
| CBE/CSE | Zero Percent One (ZPO) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZPO/Zero_Percent_One. |
| Bluebook | Zero Percent One (ZPO), http://www.acronymgeek.com/ZPO/Zero_Percent_One (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Zero Percent One (ZPO), http://www.acronymgeek.com/ZPO/Zero_Percent_One (optional description here) (as of Feb. 14, 2012, 05:43). |
| AMA | Zero Percent One (ZPO). Acronym Geek. February 14, 2012, 05:43. Available at: http://www.acronymgeek.com/ZPO/Zero_Percent_One. Accessed February 14, 2012, 05:43. |