TY  - BOOK
AU  - Cerveny,Vlastislav
AU  - Ravindra,Ravi
TI  - Theory of seismic head waves
SN  - 0802000495 :
U1  -  551.22 
PY  - 1971///
CY  - Toronto
PB  - University of Toronto Press
KW  - Head waves
ER  -