Green, A. L., Dargatz, D. A., Schmidtmann, E. T., Herrero, M. V., Seitzinger, A. H., Ostlund, E., . . . Walton, T. (2005). Risk factors associated with herd-level exposure of cattle in Nebraska, North Dakota, and South Dakota to bluetongue virus.
Chicago-tyylinen lähdeviittausGreen, Alice L., et al. Risk Factors Associated With Herd-level Exposure of Cattle in Nebraska, North Dakota, and South Dakota to Bluetongue Virus. 2005.
MLA-viiteGreen, Alice L., et al. Risk Factors Associated With Herd-level Exposure of Cattle in Nebraska, North Dakota, and South Dakota to Bluetongue Virus. 2005.
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