00426nam a22001457a 4500 230525b |||||||| |||| 00| 0 eng d National Science Library National Science Library 551.7 K0 Waller, J Marvin 9890 Stratigraphic Principles and practice Delhi: Universal Book Stall, 1960 xvi, 725p. Science udc YBK 34491 34491 0 0 udc 0 5517_K0 0 52613 NSL NSL GF/Rk-10/C-1/R-4 2004-05-02 0 551.7 K0 185618 2023-05-25 00:00:00 2004-05-02 YBK