Cita APA (7a ed.)

Ehrich, R. W. (1952). Relative chronologies in old world archeology. University of Chicago Press.

Cita Chicago Style (17a ed.)

Ehrich, Robert W. Relative Chronologies in Old World Archeology. Chicago: University of Chicago Press, 1952.

Cita MLA (8a ed.)

Ehrich, Robert W. Relative Chronologies in Old World Archeology. University of Chicago Press, 1952.