TY  - BOOK
AU  - Kummel, Bernhard.
TI  - Stratigraphic boundary problems:Permain and triassic of west pakistan / 
U1  - H5.44Q73 
PY  - 1985///
CY  - Lawrence : 
PB  - The University Press Of Kansas , 
KW  - Stratigraphic
ER  -