Benson Baker
The Sanitary Condition of the Poor in Relation to Disease, Poverty, and Crime With an appendix on the control and prevention of infectious diseases
Benson Baker · 2017
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
Sanitation, HouseholdPoor -- Health and hygiene -- Great BritainSanitation -- Great BritainCommunicable diseases -- Prevention