Cita APA (7th ed.)
Callahan, J. (2002). How to keep operating in a crisis: Managing a business in a major catastrophe. Gower.
Cita Chicago (17th ed.)
Callahan, James. How to Keep Operating in a Crisis: Managing a Business in a Major Catastrophe. Aldershot, Hampshire, England ; Burlington, VT: Gower, 2002.
Cita MLA (9th ed.)
Callahan, James. How to Keep Operating in a Crisis: Managing a Business in a Major Catastrophe. Gower, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.