TY  - BOOK
AU  - Mccall G J H Ed.
TI  - Astroblemes crytoexplosion structures
T2  - Benchmark papers in geology; 50
U1  - H4, L91 
PY  - 1979///
CY  - Strondsburg
PB  - Dowden hutchinson & ross      
KW  - Dynamic Geology
ER  -