Cita APA

Bulliet, R. W., ., Crossley, P. K., & Headrick, D. R. (1997). The earth and its peoples: A global history. Boston: Houghton Mifflin.

Citación estilo Chicago

Bulliet, Richard W., , Pamela Kyle Crossley, y Daniel R. Headrick. The Earth and Its Peoples: A Global History. Boston: Houghton Mifflin, 1997.

Cita MLA

Bulliet, Richard W., , Pamela Kyle Crossley, y Daniel R. Headrick. The Earth and Its Peoples: A Global History. Boston: Houghton Mifflin, 1997.