Παραπομπή APA

(1973). Computing and computers: Correspondence texts for Units 13&14. Open University Press.

Παραπομπή Chicago Style

Computing and Computers: Correspondence Texts for Units 13&14. England: Open University Press, 1973.

Παραπομπή MLA

Computing and Computers: Correspondence Texts for Units 13&14. Open University Press, 1973.