APA (7 वां संस्करण) प्रशस्ति पत्र

Gough,David. oliver, S. T. (2017). An introduction to systematic reviews (2nd.). Sage publications Ltd.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gough,David. oliver, Sandy. Thomas. An Introduction to Systematic Reviews. 2nd. London: Sage publications Ltd, 2017.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Gough,David. oliver, Sandy. Thomas. An Introduction to Systematic Reviews. 2nd. Sage publications Ltd, 2017.