[Sociohygienic problems in the works of F. Engels].
D005197:Famous Persons; D005858:Germany; D049673:History, 20th Century; D011634:Public Health / Q000266:history*; D012425:Russia (Pre-1917); D012950:Socialism / Q000266:history*; D014586:USSR
Sotsial-gigienicheskie problemy v trudakh F. Engel'sa.