Eradicate Flies, 1960 01-077

消灭苍蝇 1960 01-077

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Beijing Sanitation and Antiepidemic Station
北京市卫生防疫站编文
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Abstract
Workers covering up soybean paste vats to avoid attracting house flies.
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http://jhir.library.jhu.edu/handle/1774.2/59516
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