math tricks - Math bibliographies - in Harvard style

In-text: (Gemma, 2015)

Your Bibliography: Gemma, W., 2015. Number Tricks: The Secrets Behind Mind Reading. [online] Blog.udemy.com. Available at: <https://blog.udemy.com/number-tricks/> [Accessed 4 February 2015].

In-text: (Mind reading trick with numbers, 2015)

Your Bibliography: Instructables.com. 2015. Mind reading trick with numbers. [online] Available at: <http://www.instructables.com/id/Mathemagic/> [Accessed 4 February 2015].

In-text: (Mind-Reading Number Trick -- Math Fun Facts, 2015)

Your Bibliography: Math.hmc.edu. 2015. Mind-Reading Number Trick -- Math Fun Facts. [online] Available at: <https://www.math.hmc.edu/funfacts/ffiles/10004.1.shtml> [Accessed 3 February 2015].

In-text: (Mind-Reading Number Trick -- Math Fun Facts, 2015)

Your Bibliography: Math.hmc.edu. 2015. Mind-Reading Number Trick -- Math Fun Facts. [online] Available at: <https://www.math.hmc.edu/funfacts/ffiles/10004.1.shtml> [Accessed 4 February 2015].

In-text: (Mind-Reading Number Trick -- Math Fun Facts, 2015)

Your Bibliography: Math.hmc.edu. 2015. Mind-Reading Number Trick -- Math Fun Facts. [online] Available at: <https://www.math.hmc.edu/funfacts/ffiles/10004.1.shtml> [Accessed 4 February 2015].

In-text: (mathematics, 2015)

Your Bibliography: mathematics, M., 2015. Magic trick based on deep mathematics. [online] Mathoverflow.net. Available at: <http://mathoverflow.net/questions/9754/magic-trick-based-on-deep-mathematics> [Accessed 4 February 2015].

In-text: (Calculating Probability Formula, 2015)

Your Bibliography: Probabilityformula.org. 2015. Calculating Probability Formula. [online] Available at: <http://www.probabilityformula.org/calculating-probability-formula.html#> [Accessed 4 February 2015].

In-text: (Probability Formula, 2015)

Your Bibliography: Probabilityformula.org. 2015. Probability Formula. [online] Available at: <http://www.probabilityformula.org/> [Accessed 4 February 2015].