APA-viite

Osbourne, C. (2015). Exam essentials practice tests cambridge english: first FCE: Completely updated for the 2015 exam specifications. United Kingdom: National Geographic learning;Cengage Learning.

Chicago-tyylinen lähdeviittaus

Osbourne, Charles. Exam Essentials Practice Tests Cambridge English: First FCE: Completely Updated for the 2015 Exam Specifications. United Kingdom: National Geographic learning;Cengage Learning, 2015.

MLA-viite

Osbourne, Charles. Exam Essentials Practice Tests Cambridge English: First FCE: Completely Updated for the 2015 Exam Specifications. United Kingdom: National Geographic learning;Cengage Learning, 2015.

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