| Style | Reference Text |
|---|
| APA | AT PPM. (2009, November 26). In All Acronyms. Retrieved 22:23, November 26, 2009, from http://www.all-acronyms.com/AT+PPM |
| MLA | "AT PPM." All Acronyms. 26 Nov 2009, 22:23. All Acronyms. 26 Nov 2009 <http://www.all-acronyms.com/AT+PPM>. |
| MHRA | 'AT PPM', All Acronyms, 26 November 2009, 22:23, <http://www.all-acronyms.com/AT+PPM> [accessed 26 November 2009] |
| Chicago | "AT PPM," http://www.all-acronyms.com/AT+PPM (accessed November 26, 2009). |
| CBE/CSE | AT PPM [Internet]. All Acronyms; 2009 Nov 26, 22:23 [cited 2009 Nov 26]. Available from: http://www.all-acronyms.com/AT+PPM. |
| Bluebook | AT PPM, http://www.all-acronyms.com/AT+PPM (last visited November 26, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, AT PPM, http://www.all-acronyms.com/AT+PPM (optional description here) (as of Nov. 26, 2009, 22:23). |
| AMA | AT PPM. All Acronyms. November 26, 2009, 22:23. Available at: http://www.all-acronyms.com/AT+PPM. Accessed November 26, 2009. |
atomic parts per million