by Jane G. Ferrigno ... [and others] ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the Scott Polar Research Institute, University of Cambridge, United Kingdom
by Jane G. Ferrigno ... [and others] ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the British Antarctic Survey, Scott Polar Research Institute, and Bundesamt für Kartographie und Geodäsie