McKillup, Steve, Statistics Explained: An Introductory Guide for Life Scientists, illustrated edition (Cambridge, UK: Cambridge University Press, 2006) <http://ezproxy.library.qmul.ac.uk/login?url=http://www.vlebooks.com/vleweb/product/openreader?id=QMUL&isbn=9780511566950&uid=^u>
———, Statistics Explained: An Introductory Guide for Life Scientists (Cambridge: Cambridge University Press, 2011)