[Achievements of the veterinary service in Mari ASSR (on the 50th anniversary of the Republic)].
D049673:History, 20th Century; D012426:Russia; D014730:Veterinary Medicine / Q000266:history*
Dostizheniia veterinarnoĭ sluzhby Mariĭskoĭ ASSR (k 50-letiiu respubliki)