Roberts-Holmes, G., Levy, R., & Harmey, S. (2023). Doing your early years research project: A step by step guide (5th edition.). SAGE.
Chicago-viite (17. p.)Roberts-Holmes, Guy, Rachael Levy, ja Sinead Harmey. Doing Your Early Years Research Project: A Step by Step Guide. 5th edition. Thousand Oaks, California: SAGE, 2023.
MLA-viite (9. p.)Roberts-Holmes, Guy, et al. Doing Your Early Years Research Project: A Step by Step Guide. 5th edition. SAGE, 2023.
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