survey of practice in determining magnitude of near earthqu-akes: summary report for networks in north, Central and sou-th america / W. H. K. Lee.
Lee, W. H. K.
survey of practice in determining magnitude of near earthqu-akes: summary report for networks in north, Central and sou-th america / W. H. K. Lee. - Menlo Park, Calif. : United States Geological Survey. - 95 p.
survey of practice in determining magnitude of near earthqu-akes: summary report for networks in north, Central and sou-th america / W. H. K. Lee. - Menlo Park, Calif. : United States Geological Survey. - 95 p.