Fagan, B. M. (1983). People of the earth: An introduction to world prehistory (4th ed.). Little, Brown.
Citazione stile Chigago Style (17a edizione)Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 4th ed. Boston: Little, Brown, 1983.
Citatione MLA (9a ed.)Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 4th ed. Little, Brown, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.