APA (7 वां संस्करण) प्रशस्ति पत्र

Bradley, R. (1995). Understanding computer science for Advanced Level (3rd ed.). StanleyThrones.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Bradley, Ray. Understanding Computer Science for Advanced Level. 3rd ed. London: StanleyThrones, 1995.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Bradley, Ray. Understanding Computer Science for Advanced Level. 3rd ed. StanleyThrones, 1995.