[Natal'ia Konstantinovna Beliaeva; 70th birth day and 45th anniversary of her practical, scientific and paedogogical activities].
D000846:Anniversaries and Special Events; D049673:History, 20th Century; D012586:Science
NATAL'IA KONSTANTINOVA BELIAEVA: k 70-letiiu so dnia rozhdeniia i 45-letiiu vrachebnoi, nauchnoi i pedagogicheskoi deiatel'nosti.