APA (7th ed.) Citation

Willoughby, R. (2003). North Korea. Bradt Travel Guides [u.a.].

Chicago Style (17th ed.) Citation

Willoughby, Robert. North Korea. Bucks [u.a.]: Bradt Travel Guides [u.a.], 2003.

MLA (9th ed.) Citation

Willoughby, Robert. North Korea. Bradt Travel Guides [u.a.], 2003.