00443nam a2200133 a 450000500170000000800410001710000210005824500950007926000370017430000250021150000200023665000420025685200110029820190520020349.0080408s19uu    xx            00    eng d10aSampson, Anthony10aThe seven sisters :bthe great oil companies and the world they shaped /cAnthony Sampson.0 aNew York :bBantam Books,c1976.  axviii, 395 p. : map.  aIncludes index.  aPetroleum industry and tradexHistory  7OLOPSC