Cita APA

Hutchings, M., Knowler, K., McAnulty, R., & McEwan, J. (2007). Genetically resistant sheep avoid parasites to a greater extent than do susceptible sheep. The Royal Society.

Chicago Style Citation

Hutchings, M.R, K.J Knowler, R. McAnulty, i J.C McEwan. Genetically Resistant Sheep Avoid Parasites to a Greater Extent Than Do Susceptible Sheep. The Royal Society, 2007.

Cita MLA

Hutchings, M.R, K.J Knowler, R. McAnulty, i J.C McEwan. Genetically Resistant Sheep Avoid Parasites to a Greater Extent Than Do Susceptible Sheep. The Royal Society, 2007.