Osborn, M., Broadfoot, P., McNess, E., Planel, C., Ravn, B., & Triggs, P. (2003). A world of difference?: Comparing learners across Europe (1a. ed.). Open University Press.
Citace podle Chicago (17th ed.)Osborn, Marilyn, Patricia Broadfoot, Elizabeth McNess, Claire Planel, Birte Ravn, a Pat Triggs. A World of Difference?: Comparing Learners Across Europe. 1a. ed. Berkshire: Open University Press, 2003.
Citace podle MLA (9th ed.)Osborn, Marilyn, et al. A World of Difference?: Comparing Learners Across Europe. 1a. ed. Open University Press, 2003.
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