Citazione Stile APA (7a Edizione)

STUART, G. G. (1988). American's ancient cities. The National Geographic Society.

Citazione stile Chigago Style (17a edizione)

STUART, Gene G. American's Ancient Cities. Washingtan DC: The National Geographic Society, 1988.

Citatione MLA (9a ed.)

STUART, Gene G. American's Ancient Cities. The National Geographic Society, 1988.