(NoHRANA TRUDA I PROIZWODSTWENNAQ SANITARIQ W NAU^NO(B-(NISSLEDOWATELXSKIH INSTITUTAH I LABORATORIQH GEOLOGI^ESKIH ORGANIZACIJ (B/s - (NvILKIN(B, (NnIKIFOR gRIGORXEWI^(B.s; (N`RASOW(B, (Na(B.s ((NmOSKWA(B:s (NgOSGEOLTEHIZDAT(B,s, 1961)
Keywords: (NgEOLOGI^ESKIE ORGANIZACII (B- (NoHRANA TRUDAs