Mansfield, M. E., R. A. Crandell, and G. T. Woods. 1978. “The Effect of Intranasal IBR-PI3 Vaccination of Feeder Cattle on Arrival at a Feedlot Compared With Vaccination at the Start of an Outbreak of Acute Respiratory Tract Disease”. The Bovine Practitioner 1978 (13):83-87. https://doi.org/10.21423/bovine-vol1978no13p83-87.