TY  - BOOK
ED  - National Research Council, U. S.
TI  - Physics of the earth: v. 4 : the age of the earth
T2  - Bulletin of the National Research Council; No. 80
PY  - 1931///
CY  - Washington, D. C.
PB  - National Research Council of the National Academy of Sciences
KW  - Miscellaneous
N1  - By the Subsidiary Committee on the Age of the Earth, Division of Physical Sciences, with the cooperation of Division of Geology and Geography and American Geophysical Union, National Research Council. June 1931
ER  -