Cita APA (7a ed.)
Levine, J., & Landis, J. D. (Spring1989). Geographic information systems for local planning. Journal of the American Planning Association, 55, 209-221.
Cita Chicago Style (17a ed.)
Levine, Jonathan, y John D. Landis. "Geographic Information Systems for Local Planning." Journal of the American Planning Association 55 (Spring1989): 209-221.
Cita MLA (9a ed.)
Levine, Jonathan, y John D. Landis. "Geographic Information Systems for Local Planning." Journal of the American Planning Association, vol. 55, Spring1989, pp. 209-221.
Precaución: Estas citas no son 100% exactas.