McCallum, G. P., & George P. McCallum. (1980). Một trăm linh một 101 word games for students of English as a second or foreign language. New York: Oxford University Press.
Styl ChicagoMcCallum, George P., a George P. McCallum. Một Trăm Linh Một 101 Word Games for Students of English As a Second or Foreign Language. New York: Oxford University Press, 1980.
Citace podle MLAMcCallum, George P., a George P. McCallum. Một Trăm Linh Một 101 Word Games for Students of English As a Second or Foreign Language. New York: Oxford University Press, 1980.
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