TY - BOOK AU - Mitchell,W.I. AU - Mitchell,M. ED - Her Majesty΄s Stationery Office TI - The Lower Carboniferous (Upper Visean) succession at Benburb, Northern Ireland T2 - Institute of Geological Sciences : Natural Environment Research Council. 82/12 SN - 0118842595 U1 - 551.7514161 PY - 1983///. CY - London: PB - Her Majesty's Stationery Office, KW - Carboniferous KW - Northern Ireland N1 - Includes bibliographical references (p. 9) ER -