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Dyfyniad Arddull ChicagoPage, Kevin W., Paul Britton, and Michael E. G. Boursnell. "Sequence Analysis of the Leader RNA of Two Porcine Coronaviruses: Transmissible Gastroenteritis Virus and Porcine Respiratory Coronavirus." Virus Genes 1990.
Dyfyniad MLAPage, Kevin W., Paul Britton, and Michael E. G. Boursnell. "Sequence Analysis of the Leader RNA of Two Porcine Coronaviruses: Transmissible Gastroenteritis Virus and Porcine Respiratory Coronavirus." Virus Genes 1990.
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