ФИО:
Mekhanikova Marina Veniaminovna
About author:
the Federal State Budgetary Educational Institution of Higher Education the Vereshchagin State Dairy Farming Academy of Vologda
e-mail:
mekhanikova.marina@yandex.ru
the Federal State Budgetary Educational Institution of Higher Education the Vereshchagin State Dairy Farming Academy of Vologda