Authors
Hanna Różańska
Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Pulawy, Poland
Jacek Osek
Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Pulawy, Poland
© 2013 Hanna Różańska, Jacek Osek, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons License.