Cita APA (7th ed.)

Porter, D. (2009). Frommer's Denmark (6th ed.). Wiley.

Cita Chicago (17th ed.)

Porter, Darwin. Frommer's Denmark. 6th ed. New York: Wiley, 2009.

Cita MLA (9th ed.)

Porter, Darwin. Frommer's Denmark. 6th ed. Wiley, 2009.