000			005840000a22001810004500
912			_asct
002			20050405
245			_aReport on the preliminary geological survey of the Potaro-Ireng district of British Guiana, April-December, 1926 _eby Smith Bracewell
260			_aGeorgetown _bGeological Survey Department _c1958
300			_a59p. _bill., maps _c36 cm
500			_aBibliography : p. 55-59
700			_aBracewell, Smith
710			_aBritish Guiana _bGeological Survey Department
082			_aPam 558.81 _bWI Bri
942			_cPMP
999			_c75987 _d75987