Spanning the Grand Canyon - Navajo Bridge over the Colorado River

Cannon, J. A. / Turton, R. D. | British Library Conference Proceedings | 1995

Spanning the Grand Canyon Navajo Bridge Over the Colorado River

Cannon, J. A. / Turton, R. D. / Engineers' Society of Western Pennsylvania | British Library Conference Proceedings | 1994

Bridging the Grand Canyon

McKenzie, K. | Engineering Index Backfile | 1930

Neue Grand Canyon-Brücke

Plagemann, W. | Online Contents | 1995

Highway bridge across Grand Canyon

Scott, W.A. | Engineering Index Backfile | 1928