APA (7th ed.) Citation

Echenique, M. (1969). Urban Systems: Towards an Explorative Model.

Chicago Style (17th ed.) Citation

Echenique, Marcial. Urban Systems: Towards an Explorative Model. England, London, 1969.

MLA (9th ed.) Citation

Echenique, Marcial. Urban Systems: Towards an Explorative Model. 1969.

Warning: These citations may not always be 100% accurate.