an essay about arsenic - Earth Sciences bibliographies - in Harvard style

In-text: (Anne Marie Helmenstine, 2014)

Your Bibliography: Anne Marie Helmenstine, P., 2014. Get the Facts About the Element Arsenic. [online] About.com Education. Available at: <http://chemistry.about.com/od/elementfacts/a/arsenic.htm> [Accessed March 2015].

In-text: (Bentor, n.d.)

Your Bibliography: Bentor, Y., n.d. Chemical Elements.com - Arsenic (As). [online] Chemicalelements.com. Available at: <http://www.chemicalelements.com/elements/as.html> [Accessed March 2015].

In-text: (Arsenic, 2014)

Your Bibliography: Cancer.org. 2014. Arsenic. [online] Available at: <http://www.cancer.org/cancer/cancercauses/othercarcinogens/intheworkplace/arsenic> [Accessed March 2015].

In-text: (Arsenic, 2012)

Your Bibliography: Chemicool.com. 2012. Arsenic. [online] Available at: <http://www.chemicool.com/elements/arsenic.html> [Accessed March 2015].

In-text: (Arsenic, Chemical Element - Overview, Discovery and naming, Physical properties, Chemical properties, Occurrence in nature, Isotopes, n.d.)

Your Bibliography: Chemistryexplained.com. n.d. Arsenic, Chemical Element - Overview, Discovery and naming, Physical properties, Chemical properties, Occurrence in nature, Isotopes. [online] Available at: <http://www.chemistryexplained.com/elements/A-C/Arsenic.html> [Accessed March 2015].

In-text: (It's Elemental - The Element Arsenic, n.d.)

Your Bibliography: Education.jlab.org. n.d. It's Elemental - The Element Arsenic. [online] Available at: <http://education.jlab.org/itselemental/ele033.html> [Accessed March 2015].

In-text: (Scientific Facts on Arsenic, 2015)

Your Bibliography: Greenfacts.org. 2015. Scientific Facts on Arsenic. [online] Available at: <http://www.greenfacts.org/en/arsenic/> [Accessed March 2015].

In-text: (Arsenic (As) - Chemical properties, Health and Environmental effects, n.d.)

Your Bibliography: Lenntech.com. n.d. Arsenic (As) - Chemical properties, Health and Environmental effects. [online] Available at: <http://www.lenntech.com/periodic/elements/as.htm> [Accessed March 2015].

In-text: (Arsenic - Element information, properties and uses | Periodic Table, 2014)

Your Bibliography: Rsc.org. 2014. Arsenic - Element information, properties and uses | Periodic Table. [online] Available at: <http://www.rsc.org/periodic-table/element/33/arsenic> [Accessed March 2015].