00294nam a2200109 a 4500008004100000050001500041100001900056245003900075260004000114300002100154350000900175120416s1981    ||||||||||||||||| ||    u  aQE 390 Cra  aCraig, James R10aOre microscopy and ore petrography  aNew YorkbJohn Wiley and Sonsc1981  axii, 406p. : ill  a0.00