Dyfyniad APA

Whitby N. Norman. (2006). Business Benchmark. Pre-Intermediate to Intermediate: Student's Book. Cambridge, Cambridge University Press, 2006.

Dyfyniad Arddull Chicago

Whitby N. Norman. Business Benchmark. Pre-Intermediate to Intermediate: Student's Book. Cambridge, Cambridge University Press, 2006, 2006.

Dyfyniad MLA

Whitby N. Norman. Business Benchmark. Pre-Intermediate to Intermediate: Student's Book. Cambridge, Cambridge University Press, 2006, 2006.

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