00657nam a22002177a 450000500170000000800410001704000070005824500240006525000320008949000240012152001660014565000140031165000090032565000120033465000130034665000120035965000130037194200120038499900150039695200280041120250519135324.0250519b        |||||||| |||| 00| 0 eng d  cDO  aSecrets of the gene  aOctober 1999 Vol. 196 No. 4  aNational Geographic  aScience - Asking Infinite Questions, Unveiling the Universe, Secrets of the Gene, Valley of the Mummies, Cuba's Colonial Treasure, George Mallory, The Last Drive  xUNIVERSE   xGENE  xMUMMIES  xTREASURE  xEVEREST  xATLANTIC  2ddccCR  c5539d5539  aDObDOpDSMSR101999-046