APA (7th ed.) Citation

Gough, D., Oliver, S. ., & Thomas, J.. (2017). An introduction to systematic reviews (Second edition.). SAGE.

Chicago Style (17th ed.) Citation

Gough, David, Sandy Oliver, and James Thomas. An Introduction to Systematic Reviews. Second edition. Los Angeles: SAGE, 2017.

MLA (9th ed.) Citation

Gough, David, et al. An Introduction to Systematic Reviews. Second edition. SAGE, 2017.