http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Debeaking laying stock to control cannibalism
W.O. Cawley, B.C. Wormeli, W.F. Krueger and J.H. Quisenberry.
The United States Department of Agriculture cooperating.
Leaflet (Texas Agricultural Extension Service) ; 631