Horowitz, B. (2014). Hard things about hard things: Building business when there are no easy answers. Harper Business.
Dyfyniad Arddull ChicagoHorowitz, Ben. Hard Things About Hard Things: Building Business When There Are No Easy Answers. New York: Harper Business, 2014.
Dyfyniad MLAHorowitz, Ben. Hard Things About Hard Things: Building Business When There Are No Easy Answers. Harper Business, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.