Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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