APA-viite (7. p.)

Whitby, N. (2006). Business benchmark: Pre-intermediate to intermediate preliminary (1a. ed.). Cambridge University.

Chicago-viite (17. p.)

Whitby, Norman. Business Benchmark: Pre-intermediate to Intermediate Preliminary. 1a. ed. Cambridge: Cambridge University, 2006.

MLA-viite (9. p.)

Whitby, Norman. Business Benchmark: Pre-intermediate to Intermediate Preliminary. 1a. ed. Cambridge University, 2006.