Suggested Topics within your search.
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Sanitation
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Air
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Analysis
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1by Ershov, Serg︠i︡eĭ, b. 1857
Published 1888S.-Peterburg : Parova︠i︡a skoropechatn︠i︡a ︠I︡Ablonskīĭ i Perott, 1888.195 p. -
2Materīaly k bakterīologicheskomu izsl︠i︡edovanī︠i︡u vozdukhaМатеріалы к бактеріологическому изслѣдованію воздуха /by Keldysh, Nikolaĭ
Published 1886S.-Peterburg : Tipo-lit. M︠i︡esnika i Rimana, 1886.55 p. ; 26 cm.