Beak trimming handbook for egg producers
Glatz P. C., Bourke MichaelKniha
Citace v seznamu literatury:
GLATZ, P. C. a BOURKE, Michael. Beak trimming handbook for egg producers: best practice for minimising cannibalism in poultry. Collingwood: Land Links, [2006]. ISBN 9780643093539. Dostupné také z: http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=157260&authtype=ip,shib&custid=s3936755.