Citazione APA

 Sue, M. P. (2007).  Toxic people: Decontaminate difficult people at work without using weapons or duct tape.  John Wiley & Sons.

Stile di citazione Chicago

 Sue, Marsha Petrie.  Toxic People: Decontaminate Difficult People At Work Without Using Weapons or Duct Tape.  John Wiley & Sons, 2007.

Citazione MLA

 Sue, Marsha Petrie.  Toxic People: Decontaminate Difficult People At Work Without Using Weapons or Duct Tape.  John Wiley & Sons, 2007.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.