TY  - GEN
AU  - Bradley,R.S.
ED  - OIES Global Change Institute
ED  - University Corporation for Atmostpheric Research.
TI  - Global changes of the past
PY  - 1989///
CY  - Boulder, Colo.
PB  - UCAR/Office for Interdisciplinary Earth Studies
N1  - Papers arising from the 1989 OIES Global Change Institute, Snowmass, Colorado, 24 July - 4 August 1989
ER  -