Preston, R. E. Transition zone structure: The three-sector hypothesis. Town Planning Review.
Cita Chicago Style (17a ed.)Preston, Richard E. "Transition Zone Structure: The Three-sector Hypothesis." Town Planning Review .
Cita MLA (9a ed.)Preston, Richard E. "Transition Zone Structure: The Three-sector Hypothesis." Town Planning Review, .
Precaución: Estas citas no son 100% exactas.