Citação norma APA

 Parker, M. (2008).  Who said so?: The questions revolutionary businesses ask that make them successful.  John Wiley & Sons.

Citação norma Chicago

 Parker, Michael.  Who Said So?: The Questions Revolutionary Businesses Ask That Make Them Successful.  John Wiley & Sons, 2008.

Citação norma MLA

 Parker, Michael.  Who Said So?: The Questions Revolutionary Businesses Ask That Make Them Successful.  John Wiley & Sons, 2008.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.