Mortalidad de lechones: III seroagrupacion de cepas patogenas de Escherichia coli aisladas de lechones de la Granja Experimental Zapotitlan de la U.N.A.M.
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| Format: | Tesis de licenciatura |
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MX
1975
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000161755 http://132.248.9.195/pmig2020/0161755/Index.html |