Παραπομπή σε μορφή APA (7η εκδ.)

Johnson, B., & Christensen, L. B. (2008). Educational research: Quantitative, qualitative, and mixed approaches (3rd ed.). Sage.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnson, Burke, και Larry B. Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 3rd ed. Los Angeles: Sage, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Johnson, Burke, και Larry B. Christensen. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 3rd ed. Sage, 2008.