Cita APA (7a ed.)

(2008). The first 30 days: Your guide to making any change easier / Ariane de Bonvoisin.

Cita Chicago Style (17a ed.)

The First 30 Days: Your Guide to Making Any Change Easier / Ariane De Bonvoisin. 2008.

Cita MLA (9a ed.)

The First 30 Days: Your Guide to Making Any Change Easier / Ariane De Bonvoisin. 2008.