Computational Molecular Evolution. : Oxford University Press, 2006-10-05. Oxford Scholarship Online. 2010-04-01. Date Accessed 20 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198567028.001.0001/acprof-9780198567028>.
(2006-10-05). Computational Molecular Evolution. : Oxford University Press. Retrieved 20 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198567028.001.0001/acprof-9780198567028.
Computational Molecular Evolution. : Oxford University Press, 2006-10-05. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198567028.001.0001/acprof-9780198567028.
Yang Z. Computational Molecular Evolution. Oxford University Press; 2006. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198567028.001.0001/acprof-9780198567028. Accessed May 20, 2013.