Breeze, R. G., I. E. Selman, H. M. Pirie, and A. Wiseman. “A Reappraisal of Atypical Interstitial Pneumonia in Cattle”. The Bovine Practitioner, vol. 1978, no. 13, Nov. 1978, pp. 75-81, doi:10.21423/bovine-vol1978no13p75-81.