TY  - BOOK
AU  - Gregory,K.J.(Kenneth John),1938-
AU  - Walling,D.E.(Desmond Eric),1945-
TI  - Drainage basin form and process: a geomorphological approach 
SN  - 0470151986
PY  - 1973///
CY  - London
PB  - Edward Arnold
KW  - Watersheds
N1  - Bibliography: p.(407)-447
ER  -