Butcher, G. D., & Miles, R. (2002). Infectious bronchitis and its effect on egg production and egg quality. MARID Agribusiness Digest.
Citace podle Chicago (17th ed.)Butcher, Gary D., a Richard Miles. "Infectious Bronchitis and Its Effect on Egg Production and Egg Quality." MARID Agribusiness Digest 2002.
Citace podle MLA (9th ed.)Butcher, Gary D., a Richard Miles. "Infectious Bronchitis and Its Effect on Egg Production and Egg Quality." MARID Agribusiness Digest, 2002.
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