na INLIS000000000053219 20220320013040 0010-0322000185 ta 220320 g 0 eng 621 621 OAK i OAKFORD, Robert V. Introduction to electronic data processing equipment : its operation and control / Robert V. Oakford New York : McGraw-Hill, 1962 xi, 340 p. : ill. ; 23 cm. Index p. 327-340 DATA PROCESSING 2195/66