Nature conservation and the management of drainage channels 1989 Newbold, Chris | Honnor, John | Buckley, Karen |
Nature management and sustainable development : proceedings of the international congress, Groningen, the Netherlands, 6-9 December 1988 1989 Verwey, Wil D. |
Importance, structure et origine des populations d'anatarget_ides hivernant dans le delta du Sénégal Roux, Francis |
The significance of Egyptian wetlands for wintering waterbirds 1981 Meininger, Peter L. | Mullié, Wim C. |
Biology, conservation and management of waterfowl in Venezuela 1990 Gomez-Dallmeier, Francisco | Cringan, Alexander T. |