APA (7th ed.) Citation

Ioannides, Y. M., & Overman, H. G. (2003). Zipf's law for cities: An empirical examination. [s.n.].

Chicago Style (17th ed.) Citation

Ioannides, Yannis M., and Henry G. Overman. Zipf's Law for Cities: An Empirical Examination. [S.l.]: [s.n.], 2003.

MLA (9th ed.) Citation

Ioannides, Yannis M., and Henry G. Overman. Zipf's Law for Cities: An Empirical Examination. [s.n.], 2003.