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<http://web.ebscohost.com/src/detail?sid=23b360c1-0fbe-4187-8b2c-88a1b1d203b4%40ses

MLA Style:
"climate change." Encyclopædia Britannica. Encyclopædia Britannica Online Academic Edition. Encyclopædia Britannica Inc., 2013. Web. 13 Mar. 2013. <http://www.britannica.com/EBchecked/topic/121632/climate-change>.


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Encyclopædia Britannica. Encyclopædia Britannica Online School Edition. Encyclopædia
Britannica, Inc., 2013. Web. 12 Mar. 2013.

<http://school-preview.eb.com/levels/high/article/117452>.

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13 Mar. 2013.

"Cenozoic Era." EBSCOhost. N.p., 11 Jan. 2011. Web. 13 Mar. 2013.
<http://web.ebscohost.com/src/detail?sid=23b360c1-0fbe-4187-8b2c-88a1b1d203b4%40ses

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