TY - BOOK ED - National Research Council, U. S. TI - Physics of the earth: v. 1 : volcanology T2 - Bulletin of the National Research Council, No. 77 PY - 1931/// CY - Washington, D. C. PB - National Research Council of the National Academy of Sciences KW - Miscellaneous N1 - By the Subsidiary Committee on Volcanology, Division of Physical Sciences, with the cooperation of Division of Geology and Geography and American Geophysical Union, National Research Council. Feb. 1931 ER -