TY  - BOOK
AU  - Gregory,K.J.
AU  - Walling,D.E.
TI  - Drainage basin form and process: a geomorphological approach 
SN  - 0713157070 :
U1  - 551.48 
PY  - 1973///
CY  - London
PB  - Edward Arnold
KW  - Watersheds
KW  - Variations
KW  - Drainage
N1  - Includes index; Bibliography: p. 407-447
ER  -