TY  - BOOK
AU  - Collinson, J.D..
TI  - Sedimentary structures / 
SN  - 0-04-552018-6
U1  - H23:82 
PY  - 1982///
CY  - London : 
PB  - George Allen & Unwin Ltd , 
KW  - Sedimentary Structures
ER  -