Cita APA (7a ed.)

Butzer, K. W. (1976). Early hydraulic civilization in Egypt: A study in cultural ecology. University Press.

Cita Chicago Style (17a ed.)

Butzer, Karl W. Early Hydraulic Civilization in Egypt: A Study in Cultural Ecology. Chicago [etc.]: University Press, 1976.

Cita MLA (9a ed.)

Butzer, Karl W. Early Hydraulic Civilization in Egypt: A Study in Cultural Ecology. University Press, 1976.

Precaución: Estas citas no son 100% exactas.