Strong motion earthquake accelerograms : digitized and plot-ted data : volume 2 corrected accelerograms and integrated -ground velocity and displacement curves, part S : accelerog-rams IIS255 through IIS273 / California Institute of Techno-logy. 

 - Pasadena, Calif. : Research Laboratory 
 - 218 p. 
 - Report ; no. EERL 74-57 / CALTEC, Earthquake Engineering Re-search Laboratory .