TY  - BOOK
AU  - Gregory, K. J.
AU  - Walling, D. E.,
TI  - Drainage basin form and process : : a geomorphological approach / 
SN  - 0470326735
AV  - GB561 .G73
U1  - 551.4 
PY  - 1973///
CY  - New York : 
PB  - Wiley, 
KW  - Watersheds
N1  - "A Halsted Press book."; Includes Index.; Bibliography: p. [407]-447
ER  -