Hadley, A. O. (1993). Research in language learning: Principles, processes, and prospects. National Textbook Company.
Citace podle Chicago (17th ed.)Hadley, Alice Omaggio. Research in Language Learning: Principles, Processes, and Prospects. Lincolnwood: National Textbook Company, 1993.
Citace podle MLA (9th ed.)Hadley, Alice Omaggio. Research in Language Learning: Principles, Processes, and Prospects. National Textbook Company, 1993.
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