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S. Henry Ayers

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Stand Alone

A Study of Bacteria Which Survive Pasteurization (Classic Reprint)
A Study of Bacteria Which Survive Pasteurization (Classic Reprint)
The Four Essential Factors in the Production of Milk Or Low Bacterial Content April 30, 1918 (Classic Reprint)
The Four Essential Factors in the Production of Milk Or Low Bacterial Content April 30, 1918 (Classic Reprint)