Bielefeldt-Ohmann, H. (2020). Bovine Viral Diarrhea Virus and Related Pestiviruses. MDPI - Multidisciplinary Digital Publishing Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBielefeldt-Ohmann, Helle. Bovine Viral Diarrhea Virus and Related Pestiviruses. Basel, Switzerland: MDPI - Multidisciplinary Digital Publishing Institute, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBielefeldt-Ohmann, Helle. Bovine Viral Diarrhea Virus and Related Pestiviruses. MDPI - Multidisciplinary Digital Publishing Institute, 2020.
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