Seismograph station codes and characteristics / by Barbara -B. Poppe, Debbi A. Naab, and John S. Derr.
Poppe, Barbara B.
Seismograph station codes and characteristics / by Barbara -B. Poppe, Debbi A. Naab, and John S. Derr. - Arlington, V. A. : United States Geological Survey - [174] p. - Geological survey circular; 791 .
Seismograph station codes and characteristics / by Barbara -B. Poppe, Debbi A. Naab, and John S. Derr. - Arlington, V. A. : United States Geological Survey - [174] p. - Geological survey circular; 791 .