APA (7e ed.) Bronvermelding

Johnson, B., & Christensen, L. B. 1. (2017). Educational research: Quantitative, qualitative, and mixed approaches (Sixth edition.). SAGE.

Chicago (17e ed.) Bronvermelding

Johnson, Burke, en Larry B. 1941,- Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. Sixth edition. Los Angeles: SAGE, 2017.

MLA (9e ed.) Bronvermelding

Johnson, Burke, en Larry B. 1941,- Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. Sixth edition. SAGE, 2017.