TY  - BOOK
AU  - Heacock, John G. 
TI  - The earth's crust: its nature and physical properties
T2  - Geophysical Monograph; No. 20
SN  - 0-87590-020-8
PY  - 1977///
CY  - Washington, D. C.
PB  - American Geophysical Union
KW  - Earth's CrustEarth-crust
ER  -