Cita APA (7th ed.)
Pye, G. (2004). Vocabulary in practice 1: 30 units of self-study vocabulary exercises; with tests. CUP.
Cita Chicago (17th ed.)
Pye, Glennis. Vocabulary in Practice 1: 30 Units of Self-study Vocabulary Exercises; with Tests. Cambridge: CUP, 2004.
Cita MLA (9th ed.)
Pye, Glennis. Vocabulary in Practice 1: 30 Units of Self-study Vocabulary Exercises; with Tests. CUP, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.