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090 _aQE1.I6 1968b
090 _aQE1
111 2 _aInternational Geological Congress (23rd : 1968 : Prague, Czechoslovakia)
245 1 0 _aReport of the twenty-third session, Czechoslovakia, 1968
_bgeneral proceedings
_cgeneral editor: Miroslav Malkovsky ; edited by Arnost Dudek
260 _aPrague
_bAcademia
_c1970
300 _a227 p. : ill. ; 25 cm.
546 _aengger
590 _a2
650 _aGeology
_xCongresses
907 _a.b11998921
_b2021-05-28
_c2019-11-12
942 _c01
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914 _avtls000206582
991 _aFakulti Sains Fizik dan Gunaan
998 _at
_b1999-05-08
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999 _c201423
_d201423