APA (7th ed.) Citation

Elliot, C. O. (1975). Introduction to data processing. Learning Systems.

Chicago Style (17th ed.) Citation

Elliot, Clarence Orville. Introduction to Data Processing. Homewood, Ill: Learning Systems, 1975.

MLA (9th ed.) Citation

Elliot, Clarence Orville. Introduction to Data Processing. Learning Systems, 1975.