Sources
California Olive Oil Council, https://www.cooc.com/buying-tips/
McEvoy Ranch, https://www.mcevoyranch.com/about-olive-oil
North American Olive Oil Association, http://www.aboutoliveoil.org/qualityseal.html
UC Davis Olive Center, "Survey: Consumer Attitudes on Olive Oil." Selina Wang, Ben Moscatello and Dan Flynn, 2013. http://olivecenter.ucdavis.edu/media/files/surveyfinal052913reduced.pdf
UC Davis Olive Center, "Evaluation of Extra-Virgin Olive Oil Sold in California." Frankel, E. N.; Mailer, R. J.; Wang, S. C.; Shoemaker, C. F.; Guinard, J.-X.; Flynn, J. D.; Sturzenberger, N. D. 2011. http://olivecenter.ucdavis.edu/media/files/report041211finalreduced.pdf
UC Davis Olive Center, "Tests Indicate that Imported 'Extra Virgin' Olive Oil Often Fails International and USDA Standards." Frankel, E. N.; Mailer, R. J.; Shoemaker, C. F.; Wang, S. C.; Flynn, J. D. 2010. http://olivecenter.ucdavis.edu/media/files/oliveoilfinal071410updated.pdf
Olive Oil Times, "Understanding the New USDA Olive Oil Standards"
https://www.oliveoiltimes.com/olive-oil-basics/olive-oil-grades/understanding-usda-olive-oil-standards/6320
Olive Oil Times, “Extra Virgin Olive Oil.” https://www.oliveoiltimes.com/extra-virgin-olive-oil
Olive Tomato, https://www.olivetomato.com/how-to-recognize-good-and-bad-olive-oil/
Real Simple, https://www.realsimple.com/food-recipes/shopping-storing/more-shopping-storing/olive-oil-buying-checklist
Tom Mueller, Extra Viriginity: The Sublime and Scandalous World of Olive Oil. Norton, New York (2011).
US International Trade Commision Publication 4419, “Olive Oil: Conditions of Competition between U.S. and Major Foreign Supplier Industries.” https://www.usitc.gov/publications/332/pub4419.pdf
California Olive Ranch, https://californiaoliveranch.com/decode-food-labels/
The Candida Diet, https://www.thecandidadiet.com/buy-real-olive-oil/
The Food Network, https://www.foodnetwork.com/fn-dish/events/2015/04/olive-oil-101-everything-you-need-to-know
The Noun Project, https://thenounproject.com/