Cita APA (7th ed.)
Howard, B. (1995). A guide for travellers. Hunter Publishing.
Cita Chicago (17th ed.)
Howard, Blair. A Guide for Travellers. Edison, N.J.: Hunter Publishing, 1995.
Cita MLA (9th ed.)
Howard, Blair. A Guide for Travellers. Hunter Publishing, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.