Parker, M. (2008). Who said so?: The questions revolutionary businesses ask that make them successful. John Wiley & Sons.
استشهاد بنمط شيكاغوParker, Michael. Who Said So?: The Questions Revolutionary Businesses Ask That Make Them Successful. John Wiley & Sons, 2008.
MLA استشهادParker, Michael. Who Said So?: The Questions Revolutionary Businesses Ask That Make Them Successful. John Wiley & Sons, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.