APA (7e ed.) Bronvermelding
Johnson, R. B., & Christensen, L. (2020). Educational research: Quantitative, qualitative, and mixed approaches (7th ed.). SAGE.
Chicago (17e ed.) Bronvermelding
Johnson, R Burke, en Larry Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 7th ed. Los Angeles: SAGE, 2020.
MLA (9e ed.) Bronvermelding
Johnson, R Burke, en Larry Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 7th ed. SAGE, 2020.
Let op: Deze citaties zijn niet altijd 100% accuraat.