Crighton, J. (2004). Reviews of national policies for education: Bulgaria : science, research and technology ([1st ed.].). OECD. https://doi.org/10.1787/9789264007024-en
Citace podle Chicago (17th ed.)Crighton, Johanna. Reviews of National Policies for Education: Bulgaria : Science, Research and Technology. [1st ed.]. Paris: OECD, 2004. https://doi.org/10.1787/9789264007024-en.
Citace podle MLA (9th ed.)Crighton, Johanna. Reviews of National Policies for Education: Bulgaria : Science, Research and Technology. [1st ed.]. OECD, 2004. https://doi.org/10.1787/9789264007024-en.
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