Hydraulic Fracturing - Earth Sciences bibliographies - in Harvard style

In-text: (Dhliwayo, 2015)

Your Bibliography: Dhliwayo, R., 2015. Fracking in the Karoo: A step in the right direction?. [online] Consultancyafrica.com. Available at: <http://www.consultancyafrica.com/index.php?option=com_content&view=article&id=1168:fracking-in-the-karoo-a-step-in-the-right-direction-&catid=82:african-industry-a-business&Itemid=266> [Accessed 22 March 2015].

In-text: (Ford, 2015)

Your Bibliography: Ford, E., 2015. Oil and Natural Gas Fact Book. 1st ed. [ebook] Houston, Texas. Available at: <http://www.marathonoil.com/content/.../news/eagle_ford_fact_book_final.pdf> [Accessed 22 March 2015].

In-text: (Fox, 2015)

Your Bibliography: Fox, J., 2015. Gasland. [online] Gasland. Available at: <http://www.gaslandthemovie.com/whats-fracking> [Accessed 22 March 2015].

In-text: (van der Leek, 2012)

Your Bibliography: van der Leek, N., 2012. Fynbos Ridge Country House & Cottages Plettenberg Bay: The Pros and Cons of Fracking. [online] Plettenberg-bay-accommodation.blogspot.com. Available at: <http://plettenberg-bay-accommodation.blogspot.com/2012/09/the-pros-and-cons-of-fracking-guest.html?m=1> [Accessed 22 March 2015].

In-text: (Vermeulen, 2015)

Your Bibliography: Vermeulen, P., 2015. A South African perspective on shale gas hydraulic fracturing. 1st ed. [ebook] Bloemfontein, Free state, South Africa: international mine water association. Available at: <http://www.imwa.info/docs/imwa_2012/IMWA2012_Vermeulen_149> [Accessed 22 March 2015].