Ford, T. R. (1955). Man and Land in Peru. Russell and Russell.
Cita Chicago (17th ed.)Ford, Thomas R. Man and Land in Peru. New York: Russell and Russell, 1955.
Cita MLA (9th ed.)Ford, Thomas R. Man and Land in Peru. Russell and Russell, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.