TY  - BOOK
AU  - Weller,J.Marvin
TI  - Stratigraphic principles and practice
U1  - 551.7  
PY  - 1960///.
CY  - Delhi : 
PB  - Universal Book Stall, 
KW  - Physical and dynamic geology
KW  - Stratigraphy
KW  - Stratigraphic principles
ER  -