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Robert H. Webb
Dr. Robert H. Webb is a hydrologist and Diane E. Boyer is a photo archivist with the U.S. Geological Survey National Research Program in Tucson, Arizona.
Dr. Raymond M. Turner is ...voir plusDr. Robert H. Webb is a hydrologist and Diane E. Boyer is a photo archivist with the U.S. Geological Survey National Research Program in Tucson, Arizona.
Dr. Raymond M. Turner is a botanist, now retired from the USGS in Tucson. In 1959, Turner established the Desert Laboratory Repeat Photography Collection, now managed by Webb and Boyer.voir moins
Livres par Robert H. Webb
Damming Grand Canyon: The 1923 USGS Colorado River Expedition Elementary Wave Optics Évaluation : 0 sur 5 étoiles0 évaluation