[On the 50th anniversary of the 2d All-Union Congress on Occupational Hygiene and Safety Engineering].
D000056:Accident Prevention; D003226:Congresses as Topic / Q000266:history*; D049673:History, 20th Century; D009787:Occupational Medicine / Q000266:history*; D012449:Safety; D014586:USSR
K 50-letiiu vtorogo Vsesoiuznogo s''ezda po professional'noĭ gigiene i tekhnike bezopasnosti.