[Hygiene problems in F. Engels' work "The Position of the Working Class in England" (on the 140th anniversary of its publication)].
D004739:England; D005197:Famous Persons; D049672:History, 19th Century; D009787:Occupational Medicine / Q000266:history*; D012923:Social Class; D012950:Socialism / Q000266:history
Voprosy gigieny v rabote F. Engel'sa "Polozhenie rabochego klassa v Anglii" (k 140-letiiu vykhoda v svet).