WIKA - Probability - Math bibliographies - in Harvard style

In-text: (Boxing Up, 2015)

Your Bibliography: Illuminations.nctm.org. 2015. Boxing Up. [online] Available at: <http://illuminations.nctm.org/Lesson.aspx?id=4056> [Accessed 7 January 2015].

In-text: (David Spiegelhalter's Personal Home Page, 2015)

Your Bibliography: Statslab.cam.ac.uk. 2015. David Spiegelhalter's Personal Home Page. [online] Available at: <http://www.statslab.cam.ac.uk/Dept/People/Spiegelhalter/davids.html> [Accessed 7 January 2015].

In-text: (Using expected frequencies when teaching probability | Understanding Uncertainty, 2015)

Your Bibliography: Understandinguncertainty.org. 2015. Using expected frequencies when teaching probability | Understanding Uncertainty. [online] Available at: <http://understandinguncertainty.org/using-expected-frequencies-when-teaching-probability> [Accessed 7 January 2015].