Cita APA (7a ed.)
Brain, J. P., Breeden, R. L., & Stuart, G. E. Clues to America's Past. National Geographic Society, Special Publications Division.
Cita estilo Chicago (17a ed.)
Brain, Jeffrey P., Robert L. Breeden, y George E. Stuart. Clues to America's Past. Washington, EUA: National Geographic Society, Special Publications Division.
Cita MLA (9a ed.)
Brain, Jeffrey P., et al. Clues to America's Past. National Geographic Society, Special Publications Division.
Precaución: Estas citas no son 100% exactas.