00989nam 2200241z- 450 991068942220332120161209100910.0(CKB)5860000000018492(BIP)008676935(EXLCZ)99586000000001849220220406c2001uuuu -u- -engBlackwater National Wildlife Refuge oversight field hearing before the Subcommittee on Fisheries, Conservation, Wildlife, and Oceans of the Committee on Resources, U.S. House of Representatives, One Hundred Seventh Congress, first session, April 19, 2001, in Cambridge, Maryland1 online resource (iii, 50 p.) 0-16-066234-6 Blackwater National Wildlife Refuge Wildlife refugesMarylandManagementBlackwater National Wildlife Refuge (Md.)Wildlife refugesManagement.BOOK9910689422203321Blackwater National Wildlife Refuge3146704UNINA