Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Ford, J. A., & Willey, G. R. (1949). Surface survey of the Virú Valley, Peru: 1. Virú Valley; background and problems. s.n..

Chicago Citation Edition Citation

Ford, James Alfred, und Gordon R. Willey. Surface Survey of the Virú Valley, Peru: 1. Virú Valley; Background and Problems. New York, N.Y.,: s.n., 1949.

MLA Citation Edition Citation

Ford, James Alfred, und Gordon R. Willey. Surface Survey of the Virú Valley, Peru: 1. Virú Valley; Background and Problems. s.n., 1949.