Bortree, A. L. & Shook, J. C. & Chang, K. H. & Dawdy, M. L. books & textbook
CLINICAL OBSERVATIONS ON THE USE OF AUREOMYCIN FOR THE PREVENTION AND TREATMENT OF CALF SCOURS
Bortree, A. L. & Shook, J. C. & Chang, K. H. & Dawdy, M. L.
Pa. University College /1952T Pamphlet
