Johnson, B. (2004). Educational research: Quantitative, qualitative, and mixed approaches (2nd ed.). Pearson/Allyn and Bacon.
Citace podle Chicago (17th ed.)Johnson, Burke. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 2nd ed. Boston: Pearson/Allyn and Bacon, 2004.
Citace podle MLA (9th ed.)Johnson, Burke. Educational Research: Quantitative, Qualitative, and Mixed Approaches. 2nd ed. Pearson/Allyn and Bacon, 2004.
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