Using Quotes Correctly

Senegal is a french speaking country located in West Africa [1]. The country borders the North Atlantic ocean, between Guinea-Bissau and Mauitania [2]. The country is slightly smaller than the state of South Dakota [3]. Typically they have two climate seasons throughout the year. "A tropical; hot, humid; rainy season lasting from May to November. Also a dry season lasting from December through April dominated by hot, dry, harmattan winds" [4]. The country is made of mostly of low, rolling plains that rise to foothills in the southeast region of the country [5]. Their biggest natural resources are fish, phosphates, and iron ore [6]. 

Sources

[1] http://www.state.gov/r/pa/ei/bgn/2862.htm Visited 4/9/12 at 3:27 P.M. 
[2] https://www.cia.gov/library/publications/the-world-factbook/geos/sg.html Visted 4/9/12 at 3:29 P.M. 
[3] ibid [2] https://www.cia.gov/library/publications/the-world-factbook/geos/sg.html
[4] ibid [2] https://www.cia.gov/library/publications/the-world-factbook/geos/sg.html
[5] http://www.infoplease.com/ipa/A0107951.html Visited 4/9/12 at 3:31 P.M. 
[6] ibid [2] https://www.cia.gov/library/publications/the-world-factbook/geos/sg.html