@book{ Solr-742796, title = {Damming Grand Canyon : the 1923 USGS Colorado River expedition [E-Book]}, author = {Boyer, Diane E.}, editor = {Boyer, Diane E.}, editor = {Webb, Robert H.}, address = {Logan, Utah}, publisher = {Utah State University Press}, year = {2007}, pages = {289}, note = {englisch}, url = {https://ebookcentral.proquest.com/lib/fz/detail.action?docID=3442866} }