[40th anniversary of socialist veterinary construction].
D000047:Academies and Institutes; D000818:Animals; D002031:Bulgaria; D049673:History, 20th Century; D006762:Hospitals, Animal; D012950:Socialism / Q000266:history*; D014730:Veterinary Medicine / Q000266:history*
Chetirideset godini sotsialistichesko veterinarno stroitelstvo.