Cita APA

 Hybels, S. (2007).  Communicating effectively.  McGraw-Hill.

Chicago Style Citation

 Hybels, Saundra.  Communicating Effectively.  McGraw-Hill, 2007.

Cita MLA

 Hybels, Saundra.  Communicating Effectively.  McGraw-Hill, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.