“Life During the Edo Period” Ancient Civilizations Online Textbook. February 12, 2015. JPEG file. http://www.ushistory.org/civ/10e.asp
"Triangular Trade" The Abolition Project. February 13, 2015. JPEG file. http://abolition.e2bn.org/slavery_43.html
"The Columbian Exchange" St. Johns Daily School. February 15, 2015. JPEG file. http://www.sjcdslibrary.net/columbian-exchange.html
"Triangular Trade" The Abolition Project. February 13, 2015. JPEG file. http://abolition.e2bn.org/slavery_43.html
"The Columbian Exchange" St. Johns Daily School. February 15, 2015. JPEG file. http://www.sjcdslibrary.net/columbian-exchange.html