[On the 80th birthday of L. S. Gurvich].
D049672:History, 19th Century; D049673:History, 20th Century; D011634:Public Health / Q000266:history; D012425:Russia (Pre-1917); D012936:Social Medicine / Q000266:history; D014586:USSR
K 80-letiiu so dnia rozhdeniia L. S. Gurvicha.