MARC 主機 00000nam  2200000 a 4500 
245 00 Control Data Cyber 70 Computer Systems models 72, 73, 74 
       6000 computer systemss 
260 1  California :|bControl Data Corporation ,|c1972-1973 
300    vi, p. :|bills. ;|c27 cm. 
500    Scope reference manual models 72, 73, 74 version 3.4