Cita APA (7a ed.)

Nichols, D. L., & Charlton, T. H. (1997). The archaeology of city-states: Cross-cultural approaches. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Nichols, Deborah L., y Thomas H. Charlton. The Archaeology of City-states: Cross-cultural Approaches. Washington [etc.]: Smithsonian Institution, 1997.

Cita MLA (9a ed.)

Nichols, Deborah L., y Thomas H. Charlton. The Archaeology of City-states: Cross-cultural Approaches. Smithsonian Institution, 1997.