APA (7th ed.) Citation

Open University. (1973). Computing and computers: Correspondence texts for units 1-16. Open University Press.

Chicago Style (17th ed.) Citation

Open University. Computing and Computers: Correspondence Texts for Units 1-16. [Milton Keynes]: Open University Press, 1973.

MLA (8th ed.) Citation

Open University. Computing and Computers: Correspondence Texts for Units 1-16. Open University Press, 1973.