Yablo, Stephen. "Abstract Objects: A Case Study." Things: Papers on Objects, Events, and Properties. : Oxford University Press, 2010-08-05. Oxford Scholarship Online. 2010-09-01. Date Accessed 22 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199266487.001.0001/acprof-9780199266487-chapter-9>.
Yablo, S.(2010-08-05). Abstract Objects: A Case Study. In Things: Papers on Objects, Events, and Properties. : Oxford University Press. Retrieved 22 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199266487.001.0001/acprof-9780199266487-chapter-9.
Yablo, Stephen. "Abstract Objects: A Case Study." In Things: Papers on Objects, Events, and Properties. : Oxford University Press, 2010-08-05. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199266487.001.0001/acprof-9780199266487-chapter-9.
Yablo S. Abstract Objects: A Case Study. In: Yablo S. Things: Papers on Objects, Events, and Properties. Oxford University Press; 2010. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199266487.001.0001/acprof-9780199266487-chapter-9. Accessed May 22, 2013.