Cita APA (7a ed.)

(1989). Cities and regions: Publ. by International Statistical Institute (ISI). ISI.

Cita Chicago Style (17a ed.)

Cities and Regions: Publ. by International Statistical Institute (ISI). Voorburg: ISI, 1989.

Cita MLA (8a ed.)

Cities and Regions: Publ. by International Statistical Institute (ISI). ISI, 1989.