| Style | Reference Text |
|---|
| APA | PTB. (2013, May 25). In All Acronyms. Retrieved 10:12, May 25, 2013, from http://www.all-acronyms.com/cat/6/PTB |
| MLA | "PTB." All Acronyms. 25 May 2013, 10:12. All Acronyms. 25 May 2013 <http://www.all-acronyms.com/cat/6/PTB>. |
| MHRA | 'PTB', All Acronyms, 25 May 2013, 10:12, <http://www.all-acronyms.com/cat/6/PTB> [accessed 25 May 2013] |
| Chicago | "PTB," http://www.all-acronyms.com/cat/6/PTB (accessed May 25, 2013). |
| CBE/CSE | PTB [Internet]. All Acronyms; 2013 May 25, 10:12 [cited 2013 May 25]. Available from: http://www.all-acronyms.com/cat/6/PTB. |
| Bluebook | PTB, http://www.all-acronyms.com/cat/6/PTB (last visited May 25, 2013). |
| Bluebook: Harvard JOLT | See All Acronyms, PTB, http://www.all-acronyms.com/cat/6/PTB (optional description here) (as of May. 25, 2013, 10:12). |
| AMA | PTB. All Acronyms. May 25, 2013, 10:12. Available at: http://www.all-acronyms.com/cat/6/PTB. Accessed May 25, 2013. |
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