Johnson, B. (2000). Educational research: Quantitative and qualitative approaches. Allyn and Bacon.
Cita Chicago (17th ed.)Johnson, Burke. Educational Research: Quantitative and Qualitative Approaches. Boston: Allyn and Bacon, 2000.
Cita MLA (9th ed.)Johnson, Burke. Educational Research: Quantitative and Qualitative Approaches. Allyn and Bacon, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.