TY  - BOOK
AU  - Weyman,Darrell R.(Darrell Richard).
AU  - Weyman,Valerie
TI  - Lanscape processes: an introduction to geomorphololgy 
SN  - 0045510261
PY  - 1977///
CY  - London etc.
PB  - Allen and Unwin
KW  - Landforms
N1  - Includes index and bibliography : p. 91
ER  -