Morton, M. C. (2017). Aerial geology: A high-altitude tour of North America's spectacular volcanoes, canyons, glaciers, lakes, craters, and peaks. Timber Press.
Cita Chicago Style (17a ed.)Morton, Mary Caperton. Aerial Geology: A High-altitude Tour of North America's Spectacular Volcanoes, Canyons, Glaciers, Lakes, Craters, and Peaks. Portland, Oregon: Timber Press, 2017.
Cita MLA (8a ed.)Morton, Mary Caperton. Aerial Geology: A High-altitude Tour of North America's Spectacular Volcanoes, Canyons, Glaciers, Lakes, Craters, and Peaks. Timber Press, 2017.
Precaución: Estas citas no son 100% exactas.