Development in coal mining : (NpOSOBIE PO PER(B. (NS ANGL(B. (NQZ(B. (NNA RUS(B. (NDLQ U^A]IHSQ GORNYH TEHNIKUMOW (B/ s - (NtERPIGOREWA(B, (NwERA dMITRIEWNA(B.s; (NmATWEEW(B, (Ns(B. (Nd(B. s ((NmOSKWA (B:s (NuGLETEHIZDAT(B, s, 1956)
Keywords: (NaNGLIJSKIJ QZYK (B-- (Nu^EBNOE POSOBIE s; (NgORNYE WYRABOTKI (B- (NnEADAPTIROWANNAQ ANGLIJSKAQ LITERATURAs