APA (7th ed.) Citation

Hammond, M., & Wellington, J. J. (2013). Research methods: The key concepts. Routledge.

Chicago Style (17th ed.) Citation

Hammond, Michael, and J. J. Wellington. Research Methods: The Key Concepts. London: Routledge, 2013.

MLA (9th ed.) Citation

Hammond, Michael, and J. J. Wellington. Research Methods: The Key Concepts. Routledge, 2013.