Statistics at Square One
  MLA
  Swinscow, Thomas Douglas Victor, and Michael J Campbell. Statistics At Square One. BMJ Publishing Group, 2002.
  APA
  Swinscow, T. Douglas Victor, & Campbell, M. J. (2002). Statistics at Square One. BMJ Publishing Group.
  Chicago
  Swinscow, Thomas Douglas Victor, and Michael J Campbell. Statistics At Square One. : BMJ Publishing Group, 2002.