TY  - BOOK
AU  - Benford,Gregory
TI  - Deep time: how humanity communicates across millennia 
SN  - 0380975378
AV  - P96.T42 B46 1999
U1  - 333.7/14/0973 21
PY  - 1999///
CY  - New York
PB  - Avon
KW  - Waste Isolation Pilot Plant (N.M.)
KW  - Civilization
KW  - History
KW  - Communication and technology
KW  - Environmental risk assessment
KW  - United States
KW  - Radioactive waste sites
KW  - Environmental aspects
N1  - Includes bibliographical references and index
ER  -