Cita APA (7a ed.)

Butterfield, J. (2017). Soft Skills for Everyone (2.). Cengage.

Cita Chicago Style (17a ed.)

Butterfield, Jeff. Soft Skills for Everyone. 2. New Delhi: Cengage, 2017.

Cita MLA (9a ed.)

Butterfield, Jeff. Soft Skills for Everyone. 2. Cengage, 2017.