APA استشهاد

(1977). Computing and computers: Case study 3 British Oxygen company Ltd. Open University Press.

استشهاد بنمط شيكاغو

Computing and Computers: Case Study 3 British Oxygen Company Ltd. England: Open University Press, 1977.

MLA استشهاد

Computing and Computers: Case Study 3 British Oxygen Company Ltd. Open University Press, 1977.