[Practical training conditions and regimen for students of mining industry occupational and technical schools].
D008906:Mining; D009787:Occupational Medicine; D012572:School Health Services; D014586:USSR; D014830:Vocational Guidance
Ob usloviiakh i rezhime provedeniia proizvodstvennoĭ praktiki uchashchikhsia gornopromyshlennykh professional'no-tekhnicheskikh uchilishch