[HYGIENIC EVALUATION OF THE COLOR OF EQUIPMENT IN A LOCKSMITH SCHOOL WORKSHOP].
D003116:Color; D006801:Humans; D012572:School Health Services; D012574:Schools; D014586:USSR; D014829:Vocational Education
COLOR; SCHOOL HEALTH; USSR; VOCATIONAL EDUCATION
GIGIENICHESKAIA OTSENKA OKRASKI OBORUDOVANIIA SHKOL'NO I SLESARNO I MASTERSKO I.