TY  - BOOK
AU  - Hadley, R.F...[et.al]
TI  - Recent developments in erosion and sediment yield studies 
U1  - 631.558 21st ed.
PY  - 1985///
CY  - Paris
PB  - United Nations Educational Scientific and Cultural Organization, 
KW  - Erosion Processes and Sediment Yields, Sediment Transport and Delivery
N1  - Technical Documents in Hydrology
International Hydrological Programme
ER  -