Gaya APA

Izzo, J., Vanderwielen, J. (2018). The Purpose Revolution: How Leaders Create Engagement and Competitive Advantage in an Age of Social good . Oakland, CA: Berret Koehler.

Gaya MLA

Izzo, John., Vanderwielen, Jeff. "The Purpose Revolution: How Leaders Create Engagement and Competitive Advantage in an Age of Social good". Oakland, CA: Berret Koehler, 2018. Text.