01220cam a2200301 a 4500001000800000005001700008007001400025008004100039035001200080040001300092043001200105074001600117086001900133091000800152100002500160245014700185260015300332300003400485490005400519500002100573500009200594500005500686504002400741650003700765710002900802830005400831984003300885387487720170928094445.0he bmb---bbca841030s1984 vauab bb f00010 eng d a3874877 aGPOcGPO an-us-va a0624-H (MF)0 aI 19.76:83-852 amfm1 aHufschmidt, Peter W.10aDescription and evaluation of the information transfer workshop series :b"Coal hydrology in Virginia"h[microform] /cby Peter W. Hufschmidt. a[Reston, Va.?] :bU.S. Dept. of the Interior, Geological Survey ;aDenver, Colo. :bOpen-File Services Section, Western Distribution Branch,c[1984] a1 v. :bill., 1 map ;c28 cm.1 aU.S. Geological Survey open-file report ;v83-852 a"January, 1984." aMicrofiche. [Denver, Colo. : U.S. Geological Survey, 1983?]. 1 microfiche ; 11 x 15 cm. aDistributed to depository libraries on microfiche. aBibliography: p. 8. 0aCoal mines and miningzVirginia.2 aGeological Survey (U.S.) 0aU.S. Geological Survey open-file report ;v83-852 aANLcmc SUDOC I 19.76:83-852