Cita APA (7a ed.)

Overman, H. G., & Ioannides, Y. M. (2000). Zipfs law for cities: An empirical examination. Centre for Economic Performance.

Cita Chicago Style (17a ed.)

Overman, Henry G., y Yannis M. Ioannides. Zipfs Law for Cities: An Empirical Examination. London: Centre for Economic Performance, 2000.

Cita MLA (9a ed.)

Overman, Henry G., y Yannis M. Ioannides. Zipfs Law for Cities: An Empirical Examination. Centre for Economic Performance, 2000.