00683cam a22002291i 4500001001300000003000400013005001700017008004100034010001700075035002000092040004600112042001200158050001500170100001800185245003800203250002100241260005400262300003700316490006300353650001000416650002700426gs 47000060 DLC20260227111352.0860609s1946    fr a          000 0 fre c  ags 47000060   a(OCoLC)13705977  aU.S. Geological Survey LibrarycMiHMdDLC  apremarc00aTN800b.R61 aRomeuf, Jean.13aLe charbon /cpar Jean Romeuf ...  a"1re édition."  aParis :bPresses Universitaires de France,c1946.  a126 p. :bill., tables ;c18 cm.0 a"Que sais-je?" Le point des connaissances actuelles ;v193 0aCoal. 0aCoal mines and mining.