TY  - BOOK
AU  - Gilissen,Niels
ED  - Wetlands International
TI  - Numbers and distribution of wintering waterbirds in the western Palearctic and southwest Asia in 1997, 1998 and 1999 : : results from the International Waterbird Census 
SN  - 9058820114
PY  - 2002///
CY  - Wagehingen (The Netherlands)
PB  - : Wetlands International
KW  - Aves acuáticas
KW  - Asia
KW  - Conservación de especies
N1  - Incluye referencias bibliográficas e índice
ER  -