Earthquakes - Earth Sciences bibliographies - in Harvard style

In-text: (The Science of Earthquakes, 2015)

Your Bibliography: Earthquake.usgs.gov. 2015. The Science of Earthquakes. [online] Available at: <http://earthquake.usgs.gov/learn/kids/eqscience.php> [Accessed 10 March 2015].

In-text: (Endsley, 2015)

Your Bibliography: Endsley, K., 2015. Why Do Earthquakes Happen?. [online] Geo.mtu.edu. Available at: <http://www.geo.mtu.edu/UPSeis/why.html> [Accessed 10 March 2015].

In-text: (Haerens and Zott, 2013)

Your Bibliography: Haerens, M. and Zott, L., 2013. Natural disasters. Detroit: Greenhaven Press.