APA (7th ed.) Citation

Anonymus, A. (1971). Readings. The Emergence of Complex Societies. Patterns in Human History.

Chicago Style (17th ed.) Citation

Anonymus, A. Readings. The Emergence of Complex Societies. Patterns in Human History. New York, 1971.

MLA (8th ed.) Citation

Anonymus, A. Readings. The Emergence of Complex Societies. Patterns in Human History. 1971.

Warning: These citations may not always be 100% accurate.