TY  - BOOK
AU  - Sparks, B.W
TI  - Rocks and relief
SN  - 0 582 48162 7
PY  - 1972///
CY  - Cambridge
PB  - Longman
KW  - Metamarphic rocks
KW  - Rocks-dating
KW  - Rocks-devoniam system
N1  - Includes bibliographical references and index
ER  -