000
00268nam a2200097Ia 4500
008
190428s9999||||xx |||||||||||||| ||und||
100
_a
Weller, J.M.
_9
15458
245
_a
Stratigraphic principles and practice
250
_b
1960. xvi-725
260
_b
Universal. Delhi, India
999
_c
15330
_d
15330