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Resources of low-volatile bituminous coal and semianthracite in west-central Arkansas, 1978
III, 54 S. m. 3 Fig. u. 10 Tab., 1 Faltkt. als Beil. 4°
Erdwiss.FB -- HALEY,Boyd R(aymond): -- Resources of low-volatile bituminous coal and semian- -- thracite in west-central Arkansas,1978.Prepared in -- cooperation with the Arkansas Geolog.Comm.A suppl.to -- bulletin 1072-P,describing the extent,thickness,depth, -- rank,analyses,and resources of coal in west-central Ar- -- kansas. -(Washington:U.S.Government.Print.Office 1987.) -- III,54 S.m.3 Fig.u.10 Tab.,1 Faltkt.als Beil. 4° -- [Umschlagt.]:Resources of low-volatile bituminous coal -- and semianthracite in west-central Arkansas,1978. -- (U.S.Geological Survey Bulletin.Nr 1632.) -- 1987:662/Ge. -- Web.