00788nas a22002654a 4500001000800000003001100008005001700019008004100036040002600077041000800103044000700111245005600118260007800174300002300252310002500275362003600300362003600336500001600372650001100388710006900399866001400468866001600482866001200498866001200510GMR-397AR-SsjUBGM20251028230848.0251021s1968    fr ux g       000 0 fre d  bspacAR-SsjUBGMeaacr  afre  afr00aPublications Techniques des Charbonnages de France.  aParis :bCentre D'Etudes et Recherches des Charbonnages de France,c1968-  an. :bil. ;c27 cm  aFrecuencia irregular0 aComenzó a publicarse en 1968.1 aEn biblioteca años 1968-1973.  aDepósito. 4aCarbon2 aCentre d'Etudes et Recherches des Charbonnages de Franceeeditor 0a1968(8-9) 0a1969(3,5-6) 0a1970(2) 0a1973(1)