Cita APA (7a ed.)

Powell, M. (2015). Presenting in English: How to give successful presentations. Heinle Cengage Learning.

Cita Chicago Style (17a ed.)

Powell, Mark. Presenting in English: How to Give Successful Presentations. Andover [etc.]: Heinle Cengage Learning, 2015.

Cita MLA (9a ed.)

Powell, Mark. Presenting in English: How to Give Successful Presentations. Heinle Cengage Learning, 2015.