Casas, P. (2014). 1000 Spanish Recipes. New York, New York: Houghton Mifflin Harcourt Publishing.
Michaelis, K. (n.d.). Is Your Cinnamon Real? Retrieved November 02, 2017, from http://www.foodrenegade.com/your-cinnamon-real/
Production Quantities of Apples by Country. (n.d.). Retrieved November 02, 2017, from http://www.fao.org/faostat/en/#data/QC/visualize