Wrubel, Marshal H. A primer of programming for digital computers. - New York, McGraw-Hill, 1959. - 230 p. illus. 24 cm. - McGraw-Hill series in information processing and computers . LCCN: 58013895 Subjects--Topical Terms: Computer programming. LC Class. No.: QA76.5 / .W7 Dewey Class. No.: 510.7834