TY  - BOOK
AU  - VALK, Arnold G van der
TI  - Biology of freshwater wetlands
SN  - 9780199608959
U1  - 574.526.325 V16B 
PY  - 2012///
CY  - Oxford
PB  - Oxford University Pr.
KW  - WETLANDS
KW  - WERLAND ECOLOGY
ER  -