Earthquake Engineering Research Institute. <br/><br/>
Proceedings of Fourth International Conference on Seismic Zonation held at Stanford University, California, August 25-29, 1991 / 
Earthquake Engineering Research Institute. 
 - Oakland, Calif. :  Earthquake Engineering Research Institute.  1991. 
 - 3 vol. 
<br/><br/> volume 4th is missing. 
<br/><br/><label>ISBN: </label>0943198313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismology.<br/>Earthquake engineering.