TY - BOOK AU - Fagan,Brian M. TI - Time detectives : : how scientists use modern technology to unravel the secrets of the past SN - 0684818280 U1 - 930.1 23 PY - 1996/// CY - New York : PB - Simon & Schuster , KW - Archeology - Technological innovations ; Archeology - History N1 - Includes bibliographical references (p. [263]-270) and index ER -