TY - BOOK AU - Severson,Kieth E. AU - Sieg,Carolyn Hull TI - The nature of eastern North Dakota: pre-1880 historical ecology SN - 0911042652 PY - 2006/// CY - Fargo, ND PB - North Dakota Institute for Regional Studies KW - Ecology KW - North Dakota KW - Natural history KW - History N1 - Includes bibliographical references (p. 233-246) and index; Geology -- Climate -- People -- Fire -- Vegetation -- Animals -- Form and function ER -