Citazione Stile APA (7a Edizione)

Hardoy, J. E., & Thorne, J. (1973). Pre-Columbian cities (First edition.). Walker and Company.

Citazione stile Chigago Style (17a edizione)

Hardoy, Jorge Enrique, e Judith Thorne. Pre-Columbian Cities. First edition. New York: Walker and Company, 1973.

Citatione MLA (8a ed.)

Hardoy, Jorge Enrique, e Judith Thorne. Pre-Columbian Cities. First edition. Walker and Company, 1973.