Ogden, N., Nuttall, P., & Randolph, S. (1997). Natural Lyme disease cycles maintained via sheep by co-feeding ticks. Cambridge University Press.

Ogden, N., P. Nuttall, and S. Randolph. Natural Lyme Disease Cycles Maintained via Sheep by Co-feeding Ticks. Cambridge University Press, 1997.

Ogden, N., et al. Natural Lyme Disease Cycles Maintained via Sheep by Co-feeding Ticks. Cambridge University Press, 1997.