Cita APA (7th ed.)

Unesco. (2015). World heritage sites: A complete guide to 1,007 UNESCO world heritage sites (Sixth edition.). Firefly Books.

Cita Chicago (17th ed.)

Unesco. World Heritage Sites: A Complete Guide to 1,007 UNESCO World Heritage Sites. Sixth edition. Richmond Hill, Ontario: Firefly Books, 2015.

Cita MLA (9th ed.)

Unesco. World Heritage Sites: A Complete Guide to 1,007 UNESCO World Heritage Sites. Sixth edition. Firefly Books, 2015.