Ecological investigations of the federally endangered Shivwits Milk-Vetch (Astragalus ampullarioides)--2006 annual report

MLA

Miller, Mark Eugene, et al. Ecological investigations of the federally endangered Shivwits Milk-Vetch (Astragalus ampullarioides)--2006 annual report. Version 1.0. Reston, Va. : U.S. Geological Survey, 2007.

APA

Miller, M., United States., Southwest Biological Science Center (U.S.) & Geological Survey (U.S.). (2007). Ecological investigations of the federally endangered Shivwits Milk-Vetch (Astragalus ampullarioides)--2006 annual report. Version 1.0. Reston, Va. : U.S. Geological Survey.

Chicago

Miller, Mark Eugene, United States., Southwest Biological Science Center (U.S.) and Geological Survey (U.S.). Ecological investigations of the federally endangered Shivwits Milk-Vetch (Astragalus ampullarioides)--2006 annual report. Version 1.0. Reston, Va. : U.S. Geological Survey, 2007.