1. Yu fang chang dao chuan ran bing yao che di xiao mie cang ying Publication: [Zhongguo : bu xiang, 1960?] Subject(s): Gastrointestinal Diseases -- prevention & controlCommunicable Disease Control -- methodsDipteraHealth EducationChina
2. [Latrine away from house, covered latrine, covered food, and brushing flies away] Publication: [Shanghai? : s.n.], 1957 Subject(s): SanitationFood Contamination -- prevention & controlDiptera
