"Chapter 2." Oxford Scholarship Online. 2010-09-01. Oxford University Press. Date of access 19 May. 2013, <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199544950.001.0001/acprof-9780199544950-bibliography-008002>.
(2010-09-01). Chapter 2. Oxford Scholarship Online. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199544950.001.0001/acprof-9780199544950-bibliography-008002.
"Chapter 2." Oxford Scholarship Online. 19 May. 2013. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199544950.001.0001/acprof-9780199544950-bibliography-008002.
Chapter 2. In: Plotkin H. Evolutionary Worlds without End. Oxford University Press; 2010. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199544950.001.0001/acprof-9780199544950-bibliography-008002. Accessed May 19, 2013.