Nông nghiệp

• Campbell D.M
• Hill G. Albert
• The year book of veterinary medicine. Vol 2-1964
• Howard L. Hamilton
• Card Leslie E
• Berrier H.H
• Graham Carl H
• Campbell D.M
• Rabbit and cat diseases .
• Complell D.M
• Steffen Mart R
• Fistula of the withers and poll-evil .
• Campbell D.M
• Kinsley A.T
• Harry H. Berrier
• Bradley M. Patten
• C.A. Brandly Advances in veterinary science. Vol. 2
• Oscar Victor Brumley
• D.H. Udall
• Geo.F. Boddie