TY  - BOOK
AU  - Bullen,K.E.
TI  - The Earth's density
SN  - 0470120606
AV  - QB341 .B93 1975
U1  - 551.1 
PY  - 1975///]
CY  - London, New York
PB  - Chapman and Hall, Wiley
KW  - Seismology
KW  - Earth (Planet)
KW  - Density
N1  - "A Halsted Press book."; Includes bibliographies
ER  -