Purdy, W. C. (1941). An Introduction to the Microbiology of Water and Sewage for Engineering Students.
Chicago Style CitationPurdy, W. C. An Introduction to the Microbiology of Water and Sewage for Engineering Students. 1941.
Cita MLAPurdy, W. C. An Introduction to the Microbiology of Water and Sewage for Engineering Students. 1941.
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