![](/pdf-icon.png) Date: 2013-11-13 09:56:58
| | How the western frontiers were won with the help of geophysics J. G. Smith1 and H. K. Weston2,* [1]{Institute for Historical Geophysics, Houston, Texas}Add to Reading ListSource URL: www.history-of-geo-and-space-sciences.netDownload Document from Source Website File Size: 75,50 KBShare Document on Facebook
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