00471nam a2200157Ia 4500003000900000008004100009040001600050080001500066100001700081245006100098260003200159300001400191490003900205650002600244650004300270IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a52-36bAHR  aAhrens, L. H 0aDistribution of the elements in our planetcL. H. Ahrens  aNew YorkbMcGraw-Hillc1965  axi, 110p.  aEarth and planetary science series  a Elemental abundance  aAstronomy and astrophysics thesaurus