00481nam a22001337a 4500008004100000040005500041080001800096245008900114260003700203300001300240490005600253650001600309700002200325230512b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a550.4:547(05)  aAdvances in organic geochemistry c/ Proceedings of the Third International Congress  aOxford: bPergamon Press, c1970  ax, 577p.  aInternational series of monographs on earth science  aProceedings  aHobson, G D (Ed.)