Coe, Micheal D. "The Olmecs of Mexico." Smb.org. N.p., n.d. Web. 10 Oct. 2013.
Craig, Albert M., William A. Graham, and Donald Kagan. "Civilizations of Mesoamerica." The Heritage of World Civilacation. Vol. 1. Upper Saddle River, New Jesery: Pearson Education, Inc, as Prentice Hall, 2099. 28+. Print.
Ellis, Elisabeth Gaynor., and Anthony Esler. World History: Connections to Today. Upper Saddle River, NJ: Prentice Hall, 2001. 154-58. Print.
"Olmec | Natural History Museum." Kanas University Natural History Museum. Kanas University, 2012. Web. 27 Oct. 2013.
"Olmec: Colossal Masterworks of Ancient Mexico." Yale University Press. Ed. Kathleen Berrin and Virginia M. Fields. Yale University, 2 Oct. 10. Web. 27 Oct. 2013.
"Olmec Contributions to Mesoamerican Civilization (Overview)." World History: Ancient and Medieval Eras. ABC-CLIO, 2013. Web. 27 Oct. 2013.
"Olmec (people)." Encyclopedia Britannica Online. Ed. Kathleen Kuiper. Encyclopedia Britannica, 4 Apr. 06. Web. 27 Oct. 2013.
"Olmec." The American Mosaic: The Latino American Experience. ABC-CLIO, 2013. Web. 27 Oct. 2013.
Ramírez, Susan E., Peter N. Stearns, Samuel S. Wineburg, and Steven A. Goldberg. "Mesoamericans." Holt World History: Human Legacy. Austin, TX: Holt, Rinehart and Winston, 2008. 203-06. Print.
Craig, Albert M., William A. Graham, and Donald Kagan. "Civilizations of Mesoamerica." The Heritage of World Civilacation. Vol. 1. Upper Saddle River, New Jesery: Pearson Education, Inc, as Prentice Hall, 2099. 28+. Print.
Ellis, Elisabeth Gaynor., and Anthony Esler. World History: Connections to Today. Upper Saddle River, NJ: Prentice Hall, 2001. 154-58. Print.
"Olmec | Natural History Museum." Kanas University Natural History Museum. Kanas University, 2012. Web. 27 Oct. 2013.
"Olmec: Colossal Masterworks of Ancient Mexico." Yale University Press. Ed. Kathleen Berrin and Virginia M. Fields. Yale University, 2 Oct. 10. Web. 27 Oct. 2013.
"Olmec Contributions to Mesoamerican Civilization (Overview)." World History: Ancient and Medieval Eras. ABC-CLIO, 2013. Web. 27 Oct. 2013.
"Olmec (people)." Encyclopedia Britannica Online. Ed. Kathleen Kuiper. Encyclopedia Britannica, 4 Apr. 06. Web. 27 Oct. 2013.
"Olmec." The American Mosaic: The Latino American Experience. ABC-CLIO, 2013. Web. 27 Oct. 2013.
Ramírez, Susan E., Peter N. Stearns, Samuel S. Wineburg, and Steven A. Goldberg. "Mesoamericans." Holt World History: Human Legacy. Austin, TX: Holt, Rinehart and Winston, 2008. 203-06. Print.