Clegg, William. "X-ray and neutron sources." Crystal Structure Analysis: Principles and Practice. : Oxford University Press, 2009-06-18. Oxford Scholarship Online. 2009-09-01. Date Accessed 18 Jun. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199219469.001.0001/acprof-9780199219469-chapter-22>.
Clegg, W.(2009-06-18). X-ray and neutron sources. In Crystal Structure Analysis: Principles and Practice. : Oxford University Press. Retrieved 18 Jun. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199219469.001.0001/acprof-9780199219469-chapter-22.
Clegg, William. "X-ray and neutron sources." In Crystal Structure Analysis: Principles and Practice. : Oxford University Press, 2009-06-18. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199219469.001.0001/acprof-9780199219469-chapter-22.
Clegg W. X-ray and neutron sources. In: Clegg W, Blake AJ, Cole JM, et al. Crystal Structure Analysis: Principles and Practice. Oxford University Press; 2009. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199219469.001.0001/acprof-9780199219469-chapter-22. Accessed June 18, 2013.