TY - BOOK AU - Gaines, Susan M AU - Eglinton, G AU - Rullkötter, J TI - Echoes of life : what fossil molecules reveal about earth history SN - 9780195176193 SN - 200801990 U1 - 572.33 GAI PY - 2009/// CY - Oxford PB - Oxford University Press KW - Earth sciences KW - Organic geochemistry N1 - Includes bibliographical references and index ER -