Cita APA (7a ed.)

Lebeau, I. (2008). Language leader pre-intermediate workbook (1a ed.). Pearson.

Cita Chicago Style (17a ed.)

Lebeau, Ian. Language Leader Pre-intermediate Workbook. 1a ed. Essex: Pearson, 2008.

Cita MLA (8a ed.)

Lebeau, Ian. Language Leader Pre-intermediate Workbook. 1a ed. Pearson, 2008.