Стиль цитування APA (7-ме видання)

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

Чикаго стиль цитування (17-те видання)

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

Стиль цитування MLA (9-ме видання)

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