00484nam a22001691 4500 1/17540 010709s1970 enk eng 18063 DLC GR-PeUP 651.8 CO Bohl, Marilyn. Computer concepts / Marilyn Bohl Chicago: SRA, 1970 354 p.; ill.; 26 cm. Include index Computer science. INST UNIPILB MAIN 20040709 651.8 CO 00136650 00136650 LOAN 0 1