00589nam a2200205 a 450000100060000000300080000600500170001400800410003103500200007204000320009204100080012408200250013210000290015724500620018626000320024830000290028050400490030965000090035865000160036755462BD-RJUL20211209080253.0161117s1954    enka          001 0 eng    a(BD-RJUL) 55585  aDLCcYDMdUKMdBD-RJULbeng  aeng04a553.21223bFRC 19541 aFrancis, Wilfrid,d1899-00aCoal :bits formation and composition /cWilfrid Francis.  aLondon :bE. Arnold,c1954.  a567 p. :bill. ;c24 cm.  aIncludes index and bibliographical reference 0aCoal 0aPaleobotany