Typhoid Fever: Dirty Food, Dirty Water! (Nightmare Plagues)
References
^ William CaperTyphoid Fever : Dirty Food, Dirty Water! Nightmare Plagues by William Caper (2010, Hardcover) ISBN 9781936088041 (revised Dec 2016)^ Typhoid Fever: Dirty Food, Dirty Water! (nightmare Plagues), Bearport Pub Co Inc. NeweggBusiness. ISBN 9781936088041 (revised Apr 2017)
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