Wildlife refuges factors and concerns about future sustainability /

Wedi'i Gadw mewn:

Manylion Llyfryddiaeth
Awduron Corfforaethol:	United States. Government Accountability Office, United States. Congress. House. Committee on Natural Resources. Subcommittee on Fisheries, Wildlife, and Oceans, ebrary, Inc
Awduron Eraill:	Taylor, Earl B.
Fformat:	Electronig eLyfr
Iaith:	Saesneg
Cyhoeddwyd:	New York : Nova Science Publishers, c2010.
Cyfres:	Wildlife protection, destruction and extinction series.
Pynciau:	National Wildlife Refuge System (U.S.) > Management. Wildlife refuges > United States > Management. Wildlife conservation > United States. Electronic books.
Mynediad Ar-lein:	An electronic book accessible through the World Wide Web; click to view
Tagiau:	Ychwanegu Tag Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!

Rhyngrwyd