Ary, D., Jacobs, L. C., Sorensen, C. K., & Walker, D. A. (2019). Introduction to research in education (Tenth edition, Student edition.). Cengage.
Citace podle Chicago (17th ed.)Ary, Donald, Lucy Cheser Jacobs, Christine Knupp Sorensen, a David A. Walker. Introduction to Research in Education. Tenth edition, Student edition. Boston, MA: Cengage, 2019.
Citace podle MLA (9th ed.)Ary, Donald, et al. Introduction to Research in Education. Tenth edition, Student edition. Cengage, 2019.
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