[SANITARY CONDITIONS IN WORKERS' DISTRICTS IN ST. PETERSBURG AT THE BEGINNING OF THE 20TH CENTURY].
D004782:Environmental Health; D006801:Humans; D008913:Minority Groups; D044469:Racial Groups; D012924:Social Conditions; D014586:USSR
ENVIRONMENTAL HEALTH; SOCIAL CONDITIONS; USSR
SANITARNOE SOSTOIANIE RABOCHIKH RA IONOV PETERBURGA V NACHALE XX VEKA.