Cita APA

Dignen, B. (2007). Fifty ways to improve your presentation skills in english without too much effort. Orient Blackswan.

Citación estilo Chicago

Dignen, Bob. Fifty Ways to Improve Your Presentation Skills in English Without Too Much Effort. Hyderabad: Orient Blackswan, 2007.

Cita MLA

Dignen, Bob. Fifty Ways to Improve Your Presentation Skills in English Without Too Much Effort. Orient Blackswan, 2007.