Cita APA (7th ed.)

Louis Fidge; Sarah Lindsey. (2013). Vocabulary: Introductory Pupil Book (Collins Primary Focus) (New edition.). HarperCollins UK.

Cita Chicago (17th ed.)

Louis Fidge; Sarah Lindsey. Vocabulary: Introductory Pupil Book (Collins Primary Focus). New edition. HarperCollins UK, 2013.

Cita MLA (9th ed.)

Louis Fidge; Sarah Lindsey. Vocabulary: Introductory Pupil Book (Collins Primary Focus). New edition. HarperCollins UK, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.