TY  - BOOK
AU  - Shrock R R
TI  - Sequence in layered rocks: a study of features and structures useful for determining top and bottom or order of succession in bedded and tabular rock bodies
U1  - 552.5 
PY  - 1948///
CY  - London
PB  - McGraw-Hill
KW  - Layered rocks
KW  - Sedimentary rocks
ER  -