Richards, J. C., & Sandy, C. (1999). Passages: An upper-level multi-skills course : workbook 1. Cambridge ; New York: Cambridge University Press.
Čikaški stil citiranjaRichards, Jack C., i Chuck Sandy. Passages: An Upper-level Multi-skills Course : Workbook 1. Cambridge ; New York: Cambridge University Press, 1999.
MLA način citiranjaRichards, Jack C., i Chuck Sandy. Passages: An Upper-level Multi-skills Course : Workbook 1. Cambridge ; New York: Cambridge University Press, 1999.
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