TY  - BOOK
AU  - Willisams P J
TI  - Surface of the earth: An introduction to geatechnical science
U1  - H, M2 
PY  - 1982///
CY  - London
PB  - Longman         
KW  -  Earth science
KW  - Geology
N1  - Bibliography 203-209p
ER  -