Volk, W. A. (1992). Basic microbiology (7th ed.). Harper Collins.
Lua i Stíl Chicago (17ú heag.)Volk, Wesley A. Basic Microbiology. 7th ed. New York: Harper Collins, 1992.
Lua MLA (9ú heag.)Volk, Wesley A. Basic Microbiology. 7th ed. Harper Collins, 1992.
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