Cita APA (7th ed.)
Willey, G. R. (1953). Prehistoric settlement patterns in the Virú Valley, Perú. Government Printing Office.
Cita Chicago (17th ed.)
Willey, Gordon R. Prehistoric Settlement Patterns in the Virú Valley, Perú. Washington: Government Printing Office, 1953.
Cita MLA (9th ed.)
Willey, Gordon R. Prehistoric Settlement Patterns in the Virú Valley, Perú. Government Printing Office, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.