Gaya APA

Elkington, John, Hartigan, Pamela. (2008). The Power of unreasonable people : how social entrepreneurs create markets that change the world . Boston, MA.: Harvard Business Press.

Gaya Chicago

Elkington, John, Hartigan, Pamela. The Power of unreasonable people : how social entrepreneurs create markets that change the world. Boston, MA.: Harvard Business Press, 2008. Text.

Gaya MLA

Elkington, John, Hartigan, Pamela. The Power of unreasonable people : how social entrepreneurs create markets that change the world. Boston, MA.: Harvard Business Press, 2008. Text.

Gaya Turabian

Elkington, John, Hartigan, Pamela. The Power of unreasonable people : how social entrepreneurs create markets that change the world. Boston, MA.: Harvard Business Press, 2008. Print.