[The past in the service of the future (on the 70th anniversary of the Great October Socialist Revolution)].
Petrov
B D
BD
D049673:History, 20th Century; D007388:Internal Medicine / Q000266:history* / Q000639:trends; D011634:Public Health / Q000266:history* / Q000639:trends; D012425:Russia (Pre-1917); D014586:USSR
Proshloe--na sluzhbu budushchemu (k 70-letiiu Oktiabria).