APA (7 वां संस्करण) प्रशस्ति पत्र

Horowitz, B. (2014). Hard things about hard things: Building business when there are no easy answers. Harper Business.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Horowitz, Ben. Hard Things About Hard Things: Building Business When There Are No Easy Answers. New York: Harper Business, 2014.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Horowitz, Ben. Hard Things About Hard Things: Building Business When There Are No Easy Answers. Harper Business, 2014.