health expenditure and internet users - Math bibliographies - in Harvard style

In-text: (Health expenditure per capita (current US$) | Data | Table, 2015)

Your Bibliography: Data.worldbank.org. 2015. Health expenditure per capita (current US$) | Data | Table. [online] Available at: <http://data.worldbank.org/indicator/SH.XPD.PCAP/countries> [Accessed 15 February 2015].

In-text: (Internet users (per 100 people) | Data | Table, 2015)

Your Bibliography: Data.worldbank.org. 2015. Internet users (per 100 people) | Data | Table. [online] Available at: <http://data.worldbank.org/indicator/IT.NET.USER.P2?page=6&cid=GPD_44> [Accessed 15 February 2015].

In-text: (Kenny, 1979)

Your Bibliography: Kenny, D., 1979. Correlation and causality. New York: Wiley.

In-text: (Lam, 2015)

Your Bibliography: Lam, L., 2015. Parental mental health and Internet Addiction in adolescents. Addictive Behaviors, 42, pp.20-23.

In-text: (Mathwords: Correlation Coefficient, 2015)

Your Bibliography: Mathwords.com. 2015. Mathwords: Correlation Coefficient. [online] Available at: <http://www.mathwords.com/c/correlation_coefficient.htm> [Accessed 15 February 2015].