000
00227nam a2200097 4500
999
_c
335405
_d
335405
082
_a
551.7
_b
GEO.C
100
_a
GSI
245
_a
Code of Stratigraphic Nomenclature of India
_c
GSI
260
_a
Bangalore
_c
1971
_b
GSI
942
_c
BK