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"Gas Weapons in WWI", Accessed September 10, 2014. theweek.com
"Mustard Gas Burns", Accessed September 10, 2014. journals.hil.unb.ca
"Mustard Gas Victims", Accessed September 10, 2014. harrowercollection.com
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"World War One: Gas Warfare", Accessed September 10, 2014. oldmagazinearticles.com