00457nam a2200133 a 4500008004100000020001500041050001500056100001600071245005600087246008700143260005900230300002500289350000900314120416s0000    ||||||||||||||||| ||    u  a0900488034  aTN 871 Com  aJones, M. J10aMining and petroleum geologycedited by M. J. Jones  aproceedings of the ninth commonwealth mining and metallurgical congress 1969, v. 2  aLondonbThe Institution of Mining and Metallurgyc1970  axxxvii, 774p. : ill.  a0.00