Cita APA (7th ed.)

Fagan, B. M. (1983). People of the earth: An introduction to world prehistory (4th ed.). Little, Brown.

Cita Chicago (17th ed.)

Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 4th ed. Boston: Little, Brown, 1983.

Cita MLA (9th ed.)

Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 4th ed. Little, Brown, 1983.