#trevizoworkscitedpage4thperiod

Works Cited

Coyne, Jerry. "Mass Species Extinction Poses a Serious Threat." Biodiversity 2010: n. pag. Opp. Web. 21 Apr. 2015. <http://ic.galegroup.com/ic/ovic/ViewpointsDetailsPage/ViewpointsDetailsWindow?failOverType=&query=&prodId=OVIC&windowstate=normal&contentModules=&display-query=&mode=view&displayGroupName=Viewpoints&limiter=&u=j071909010&currPage=&disableHighlighting=true&displayGroups=&sortBy=&source=&search_within_results=&p=OVIC&action=e&catId=&activityType=&scanId=&documentId=GALE%7CEJ3010602205>.

Parham, Brian. "There Are Multiple Threats to the Earth's Environment." Environment 2014: n. pag. Opposing Viewpoints in Context. Web. 21 Apr. 2015. <http://ic.galegroup.com/ic/ovic/ViewpointsDetailsPage/ViewpointsDetailsWindow?failOverType=&query=&prodId=OVIC&windowstate=normal&contentModules=&display-query=&mode=view&displayGroupName=Viewpoints&limiter=&u=j071909010&currPage=&disableHighlighting=true&displayGroups=&sortBy=&source=&search_within_results=&p=OVIC&action=e&catId=&activityType=&scanId=&documentId=GALE%7CEJ3010132295>.

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