Brown, L. N., R. E. Dierks, and R. C. Dillman. “Problems in Differential Diagnosis of Haemophilus Somnus Infections (‘thrombo’) of Feedlot Cattle”. The Bovine Practitioner 1970, no. 5 (June 1, 1970): 36–37. Accessed September 22, 2024. https://bovine-ojs-tamu.tdl.org/bovine/article/view/255.