TY  - BOOK
AU  - Hefferan, Kevin
AU  - O'Brien, John
TI  - Earth materials
SN  - 9781444334609
SN  - 200905026
U1  - 550 HEF 
PY  - 2010///
CY  - Hoboken, NJ
PB  - Wiley-Blackwell
KW  - Geology - Textbooks
N1  - Includes bibliographical references and index
ER  -