 | United States. Congress. Senate. Committee on Commerce, Science, and Transportation - 1978 - 1264 páginas
...companies attended the most recent William T. Pecora Symposium in Sioux Falls, S. Dak., in October 1977. Both in presented papers and in private discussions,...be of tectonic significance. Mosaics at scales of 1 : 5,000,000 and 1 : 100,000 were used to identify and evaluate new features and to re-evaluate previously... | |
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