Cita APA (7a ed.)

Johnson, B., & Christensen, L. B. (2012). Educational research: Quantitative, qualitative, and mixed approaches (4th ed.). Sage.

Cita Chicago Style (17a ed.)

Johnson, Burke, y Larry B. Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 4th ed. Los Angeles [etc.]: Sage, 2012.

Cita MLA (9a ed.)

Johnson, Burke, y Larry B. Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 4th ed. Sage, 2012.