Strong motion earthquake accelerograms : digitized and plot-ted data : volume 2 corrected accelerograms and integrated -ground velocity and displacement curves, parts Q and R : ac-celerograms IIQ233 to IIQ243 and IIR244 to IIR254 / Califo-rnia Institute of Technology. 

 - Pasadena, Calif. : Research Laboratory 
 - 279 p. 
 - Report ; no. EERL 74-56 / CALTEC, Earthquake Engineering Re-search Laboratory .